Add support for BIONIC C library (Android). Patch from Dan Albert

Change-Id: I9ead4d8a1d16e71d57fdc7696457cfcc3de4f713
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@212724 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed