arm: Preserve 8-byte alignment of stack pointer

https://github.com/upx/upx/issues/60  (partial)
	modified:   stub/src/arm.v4a-linux.elf-fold.S

	modified:   ../.github/travis_testsuite_1.sh
	modified:   stub/arm.v4a-linux.elf-fold.h
	modified:   stub/arm.v5a-linux.elf-fold.h
	modified:   stub/armeb.v4a-linux.elf-fold.h
	modified:   stub/tmp/arm.v4a-linux.elf-fold.map
	modified:   stub/tmp/arm.v5a-linux.elf-fold.map
	modified:   stub/tmp/armeb.v4a-linux.elf-fold.map

.github/travis_testsuite_1.sh

@@ -152,7 +152,7 @@ b8c35fa2956da17ca505956e9f5017bb5f3a746322647e24ccb8ff28059cafa4 *powerpc-linux.
 expected_sha256sums__t110_compress_ucl_nrv2b_3_no_filter="\
 d7c6e681951409257658c675f647969fe6f01207f779d0a7e3ab0a419f20ecf9 *amd64-linux.elf/upx-3.91
 5b9ec916beae0eadc665235158a9ae5bce1309823a344503268a88e32e77824a *arm-wince.pe/upx-3.91.exe
-f4d2881d99e55cabdc08af8b64ec89ef9c0555a544c8c5037e1a3f7206c6cda4 *armeb-linux.elf/upx-3.91
+18c154dd87227867cf6390038499393d454064af0668bf3451ef1e2e66290176 *armeb-linux.elf/upx-3.91
 960dc15876221832510142816605b9ef568c0de3050ca0a79f3553643c5d5e0f *i386-dos32.djgpp2.coff/upx-3.91.exe
 5d970493750d88ecd638998b83fa6107c5b4c290f2467894cdadfc359b9ecb9f *i386-linux.elf/upx-3.91
 ca6925a15c1ab8931f0a8fe9ef87f5893403d6e46098f4cd1a5f6f6f0fbdeb44 *i386-win32.pe/upx-3.91.exe
@@ -163,7 +163,7 @@ ca6925a15c1ab8931f0a8fe9ef87f5893403d6e46098f4cd1a5f6f6f0fbdeb44 *i386-win32.pe/
 expected_sha256sums__t120_compress_ucl_nrv2d_3_no_filter="\
 457988127f7c8d52b088971d88db74cb9e3197a23389f754bd3de16d03258898 *amd64-linux.elf/upx-3.91
 22216286b1bf3066d9022b921f37beff6712b5f3fc8c092f2dc1477638d9f8cc *arm-wince.pe/upx-3.91.exe
-80dbe439e3c644f79e1e2b78929e402cf7856775a02a8916c9d25db327600313 *armeb-linux.elf/upx-3.91
+f7338f71b4e7ed729aecf6c6e7704c39f4d5b274685c28b877247686357c776e *armeb-linux.elf/upx-3.91
 b6e98d36bd916fa63ec799e47dd7cac3674154370a9680492d84f1853bf14c3e *i386-dos32.djgpp2.coff/upx-3.91.exe
 7f57e8993caa50eddd96b6f22be64b1ab619f35135c584e92d26b90bc9952a38 *i386-linux.elf/upx-3.91
 d2692b3e4a278559456e299164714c4bb8ebbcf230ab12521619e2e94580597d *i386-win32.pe/upx-3.91.exe
@@ -174,7 +174,7 @@ c4cf483a825385b51fba75852c42b0e08d73ea0b0236a548571f6bb24fa9ed0a *powerpc-linux.
 expected_sha256sums__t130_compress_ucl_nrv2e_3_no_filter="\
 b6d5be27ef60c487ad53ddd5efdbedaf39de40810a30accd99c7ab618cd5aab9 *amd64-linux.elf/upx-3.91
 08c55815175ce0d34fca3b368336dd346a2354dbe4f046210c82f6961350a50f *arm-wince.pe/upx-3.91.exe
-724a6b73676709f0d2fa019e7b65e28e94f87e53977ab6f230cb466fa8d81519 *armeb-linux.elf/upx-3.91
+b5f27af98d063473853ee28f6572c7438c167d80bcc2b89c30fb436cc5e79309 *armeb-linux.elf/upx-3.91
 45f50d69e685f7ea752f76c05554d4c2ce023c0218465a4f8919138a76ae6c71 *i386-dos32.djgpp2.coff/upx-3.91.exe
 3bbe4b9b439bc12dace58ea8524fccd5944dffcd83a2b49be18c6a06e3c30490 *i386-linux.elf/upx-3.91
 eb7c2f74979c11b35193a0a9d428596bda46420d9363666fe1b967f5cd1610c6 *i386-win32.pe/upx-3.91.exe
@@ -185,7 +185,7 @@ cefb13395220fb2e931d0fb32e27663c4a27035f9e79131bbabc44fa54e6336e *m68k-atari.tos
 expected_sha256sums__t140_compress_lzma_2_no_filter="\
 4a447b051e2d8c2ce7f10399f0e7bfeb6f4e5d5ab3fde22e448d15eeb08037ae *amd64-linux.elf/upx-3.91
 9759deb5aa8fb004c4b23bbe174042e45869aedeea1a1dd1b729be0e736814da *arm-wince.pe/upx-3.91.exe
-1cc9476148e7f1000607d72d109bd1d3ec9b7b7e3da579ae07a8161781adc627 *armeb-linux.elf/upx-3.91
+c476387cb0f9a011f46e2c96bc0b481012cf6a3c6d4a4529c0630c1582cb4c4b *armeb-linux.elf/upx-3.91
 a2a800d2ba5cfc1b6bb2b48c91adccb5d3c3b6c0b5c548affccac9244197a312 *i386-dos32.djgpp2.coff/upx-3.91.exe
 3c37692bd418a90eb56f34179fa3f079f7e9d19542e1d86e4d58068e1aecf534 *i386-linux.elf/upx-3.91
 80aba41aad8268085e853ec872f885981838a625c14095d21ba70cb7abe045a5 *i386-win32.pe/upx-3.91.exe
@@ -196,7 +196,7 @@ bbed61e42fa7b330b5cde66e4614329f41e21facff1f3667edc03495219c29f9 *m68k-atari.tos
 expected_sha256sums__t150_compress_ucl_2_all_filters="\
 b700cb1e1a523b7f03a6a9476e94744dc1d0f7d1a4d23aa3fb6c3af5a7a259e2 *amd64-linux.elf/upx-3.91
 c7b0f611e9941be58b700219e7a5d34cdbdbf972b6184b13dec5e98fe84de808 *arm-wince.pe/upx-3.91.exe
-b31e9278e3d51181ec014c82318970505ecaf6348ad17dc520324a615f192e26 *armeb-linux.elf/upx-3.91
+4c6348cc3e99ba1f27dc8602b890ad7ff7e40351148470a7ed56dcbd112aad02 *armeb-linux.elf/upx-3.91
 425c9128285f49b41f9b736f48794f5bebba6981250f669e5a342016b89f2170 *i386-dos32.djgpp2.coff/upx-3.91.exe
 1e408f4b46a04a4497cb8506f441690bbb08501596d07da731be912dee87602f *i386-linux.elf/upx-3.91
 5565f8196d971feec261dc663ca7ec329fd82b1b18ad49593b865edbaa15765d *i386-win32.pe/upx-3.91.exe
@@ -207,7 +207,7 @@ ae840ecf9b171a3e989b22bea5dcd04a5ec1998bb14aeb4836f66b4e03423f7e *powerpc-linux.
 expected_sha256sums__t160_compress_all_methods_1_no_filter="\
 79e014f4bf17239196b829068d17fbee3258e15438e61e6aebaf1aa3f50af68d *amd64-linux.elf/upx-3.91
 6b2333719a4fe6c8d2067f682d57cf6fc5fd928bffad4e61aaffcc31287772a7 *arm-wince.pe/upx-3.91.exe
-37cbc3a01044492f58afd6761c55343e3841f6aeaa66062e43fbc295aea615a8 *armeb-linux.elf/upx-3.91
+e6c5e7ed8935980983ccce9871414e39fe06dbd0f94660d67dde447a1cd51aea *armeb-linux.elf/upx-3.91
 d09af3652aa601650f9cd0f125d54e50dfe57b45b9871567140e62a04d032407 *i386-dos32.djgpp2.coff/upx-3.91.exe
 fe84e197d9d498138f9600a7c5e31f10804f6c25b28e617786dbbdc6e42919e8 *i386-linux.elf/upx-3.91
 c3c8b428f7e57a528db89f1365b4f3fda60f0dc03eadb30775ecdbadaa19f0aa *i386-win32.pe/upx-3.91.exe
@@ -218,7 +218,7 @@ c3c8b428f7e57a528db89f1365b4f3fda60f0dc03eadb30775ecdbadaa19f0aa *i386-win32.pe/
 expected_sha256sums__t170_compress_all_methods_no_lzma_5_no_filter="\
 a5af9273126baeb15dce877d76fc4d3e971d3f60796ee1b176ed01d9bd76bb8f *amd64-linux.elf/upx-3.91
 685b7e419b8b0fe3cabdf338a5cad17da55edc608c1bb91c13580b5988d38908 *arm-wince.pe/upx-3.91.exe
-913b83fe99fbb041c00660d18683c41ec8cb844351fc3735ec7950c739bf8929 *armeb-linux.elf/upx-3.91
+536b092822a86875b73ccc95f6685419c7903beb1e48a4afd872e243a7761830 *armeb-linux.elf/upx-3.91
 fd0652470c19ebb4a2d1a49e02e71acf9fadab78e513bb4f75d1dc26a0caa7a3 *i386-dos32.djgpp2.coff/upx-3.91.exe
 052357e8e078a444952727212f06efef7f389f77e4ec61568ad3959cdecafde9 *i386-linux.elf/upx-3.91
 5b334db8debd2d59470cad25c7b45e38f6195cdafe92dc8281e4edc9c51385ef *i386-win32.pe/upx-3.91.exe