Make use of sanitizers without clang an error.
Make use of sanitizers without clang an error.

Previously using a sanitizer would imply clang. It should be an error
instead so it's more obvious.

Change-Id: I67c949bfda3718a0d19da7e358b5fde447fce334

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build