Add missing typedefs for C compat.

Bug: https://github.com/android/ndk/issues/1920
Test: clang --sysroot out/soong/ndk/sysroot
          out/soong/ndk/sysroot/usr/include/**/*.h

Change-Id: I2fc435c16bc8df77c2ab0754f2cc43d9aa717de8
1 file changed