Android: Detect API version of standalone toolchain with unified headers
A standalone toolchain with unified headers keeps the `__ANDROID_API__` macro in the `bin/clang` launcher instead of in `api-level.h`. Issue: #16954
Updates will be applied April 15th at 12pm EDT (UTC-0400). GitLab could be a little slow between 12 - 12:45pm EDT.
A standalone toolchain with unified headers keeps the `__ANDROID_API__` macro in the `bin/clang` launcher instead of in `api-level.h`. Issue: #16954