Merge "Fix unreadable debug message in cell identity" into rvc-dev am: 11ce6826 am: 8d03c829 am: 6e9e10a1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11843145

Change-Id: I2753ccc785974efad67333222a67b2b54152ce29