Add atrace instrumentation for suspend backoffs. am: 76b525c6be am: e4aec03716

Original change: https://android-review.googlesource.com/c/platform/system/hardware/interfaces/+/2854865

Change-Id: Ic82c088302db5c8ed2729da26ef860d271eb6ad4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>