Add a IsInitialized check in AOT code with clinit at entry checks. am: f853790778 am: f1d3adc64a

Original change: https://android-review.googlesource.com/c/platform/art/+/2216462

Change-Id: I40c718ae316970dd32600c1b8b63252f6da47bd3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>