Merge "[sf] write transaction trace to disk on error" into udc-qpr-dev am: d136af5b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23700730



Change-Id: I1ebbf8daf68ff5d691bd3e3014c38c05d2913171
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>