Make arm64 build with ART_TARGET_CLANG.
Make arm64 build with ART_TARGET_CLANG.

Change-Id: If47ba8afbce3bbe9696cc7d6d08502e07aba5e7d

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst