[automerger skipped] Add log to check whetner the IMPU is null or not am:...

[automerger skipped] Add log to check whetner the IMPU is null or not am: 0a9ad5e0 -s ours am: 47e95915 -s ours

am skip reason: Merged-In I227a8c8c0986c422c7d99f6d472d1e1adf97eeaa with SHA-1 80594d05 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/net/ims/+/14609610

Change-Id: I529e0e53c9391019d3f370cdfb01b33b940e493f