Make libarm-optimized-routines-{math,string} cc_library_static modules. am: a7c8188b43 am: 1ca81608f5 am: 2fd80156a2

Original change: https://android-review.googlesource.com/c/platform/external/arm-optimized-routines/+/1688289

Change-Id: I0bd035e925c040f47d5b7bace49b2868217138da