Merge "Add BarringInfo.BarringServiceInfo#toString" into main am: 6f25c5b7c6

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2779769

Change-Id: I9e57c03d5c89c100b3ee78a88fadbb7493998d22
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>