Wait for JIT threads to be created in ASAN builds am: 889403b999 am: 791614c841

Original change: https://android-review.googlesource.com/c/platform/art/+/2176578

Change-Id: I36ee444a7cc2ead17deca151e0558920af31868e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>