Add Android.bp file to compile libc_musl am: 22a72b0423 am: e646802d70 am: 3a0efb72b8 am: 6592a64079

Original change: https://android-review.googlesource.com/c/platform/external/musl/+/1748946

Change-Id: Iaff6d06fd449ade263874e9bee4d37e30d674dc9