Wait for JIT threads to be created in ASAN builds am: 889403b999 am: 791614c841 am: 01d68b677b

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

Change-Id: I5f55470397a97afa4db9d3b6ff315f13c63579cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>