Add the NDK's libc++ library to the build.

This depends on Bionic's NDK compatibility library, which is still a
WIP.

We should probably consider adding both compatlib and non-compatlib
flows to the NDK so that users who only care about the latest versions
can avoid using the compatblib (there are probably going to be bugs
for a while).

Bug: 19149083
Change-Id: I76907cc6cfb1960a4dbd144974ce20cdd9b94777
1 file changed