Small test clean up.

Shrink a few files that are huge by removing all of the .debug_XXX
sections except .debug_frame since they aren't used.

Rename all of the arm32 to arm and x86_32 to x86.

Test: All unit tests pass.
Change-Id: Ia0f0baadf2a7fbc42a544aff2f14d5ed5f9287b7
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index 3354c90..892fb48 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -248,10 +248,10 @@
         "tests/files/elf64.xz",
         "tests/files/offline/bad_eh_frame_hdr_arm64/*",
         "tests/files/offline/debug_frame_first_x86/*",
-        "tests/files/offline/jit_debug_arm32/*",
-        "tests/files/offline/jit_debug_x86_32/*",
-        "tests/files/offline/gnu_debugdata_arm32/*",
-        "tests/files/offline/straddle_arm32/*",
+        "tests/files/offline/jit_debug_arm/*",
+        "tests/files/offline/jit_debug_x86/*",
+        "tests/files/offline/gnu_debugdata_arm/*",
+        "tests/files/offline/straddle_arm/*",
         "tests/files/offline/straddle_arm64/*",
     ],
 }