Android.bp: Change file mode to non-executable am: 3d7d7fab am: b32a07c0

Original change: https://android-review.googlesource.com/c/platform/external/arm-optimized-routines/+/2302998



Change-Id: I7760d1660e6a5f0d966f0d579986c11337210dbe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>