Support compiling python2 against musl am: 66addf4ff3 am: 965ad62600 am: d9205f3aa7

Original change: https://android-review.googlesource.com/c/platform/external/python/cpython2/+/1776890

Change-Id: Ib3a9b8120d95b7939bfd85e436503d5dc1f0ac3d