Migrate to the new clang lib dir am: 7524649d64

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

Change-Id: I8d0cebc5a80f7ec4780d1ecd85ed845cd7d33ab6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>