Merge "Add sleep in EffectThread to avoid busy wait" am: ac46ddb969 am: 94c87272b2

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2478089

Change-Id: I559a35ad675f22aace3dc0d0abfe92edc592f89c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>