OpenJDK 11: Adding Unsafe new intrinsics for AtomicIntegerFieldUpdater am: 0069ad7ddb am: cbc0f76707

Original change: https://android-review.googlesource.com/c/platform/art/+/1837417

Change-Id: Ie49a10873efe73dcd4b2a27985f15c0e3c33d0f0