Merge "[bug fix] Handle the case when rfFieldOnTime is not set in OemLog." into main am: 78d37c3aa5 am: ed7c9b85f2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3341785

Change-Id: Icf98ab05b5bc18e0e68fbc689ac396fa41865a4c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>