scrub pii (imsi) from carrierIdentifier logging

Bug: 129229239
Test: Manual
Change-Id: I642d60e4ba1001bfd481aada87fa08dbd19098be
(cherry picked from commit 61b2c86719b0d599a2ecde8aeaa4369167e893cf)
Merged-in: I642d60e4ba1001bfd481aada87fa08dbd19098be
1 file changed