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

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

Change-Id: If5eaeb486736ca5c4b5c3da49251acb41a70e055
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>