Turn unusual tags into errors

Test: build/soong/build_test.bash
Change-Id: If68bea3929763747137f8acc4a045933f40f5e17
Merged-In: If68bea3929763747137f8acc4a045933f40f5e17
(cherry picked from commit c35641913d45cd425945833de2f9a7c082070943)
1 file changed