CallAudioState: Remove sensitive info from log.

Bluetooth has made a lot change to stop printing the address in the
logcat and instead it is printing an obfuscated version of the address
thanks to the toString method.

Bug: 328846856
Fix: 328846856
Test: atest TelecomUnitTests
Flag: Exempt log change
Change-Id: Iccdc3e1bc2ca4dc3858dfeee48c3cb55299fee7a