Migrate to the new clang lib dir am: 7524649d64 am: 3acc10497a

Original change: https://android-review.googlesource.com/c/platform/art/+/2428673

Change-Id: I28c82b857753e68835979f49373b4cd955414508
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>