--android-shlib preserves selected Elf32_Shdr

32-bit only for now; also in wrong place for unpacking (-d)
	modified:   main.cpp
	modified:   options.h
	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h

src/main.cpp

@@ -866,6 +866,9 @@ static int do_option(int optc, const char *arg)
     case 675:
         opt->o_unix.preserve_build_id = true;
         break;
+    case 676:
+        opt->o_unix.android_shlib = true;
+        break;
 
     case '\0':
         return -1;
@@ -1016,6 +1019,7 @@ static const struct mfx_option longopts[] =
     {"openbsd",          0x10, 0, 669},
     {"unmap-all-pages",  0x10, 0, 674},     // linux /proc/self/exe vanishes
     {"preserve-build-id",   0, 0, 675},
+    {"android-shlib",       0, 0, 676},
     // watcom/le
     {"le",               0x10, 0, 620},     // produce LE output
     // win32/pe