Revert "clang: AST: use -fno-strict-aliasing"

This reverts commit f57f4b0ab6922529fc3871a6f8b31c548de87996.
Clang: AST: properly fix aliasing violations

Change-Id: I830bbc812132d7bd12c166cb8005a3ff4e4b2553

Conflicts:
	lib/AST/Android.mk