[automerger skipped] Merge "Use FLAG_IMMUTABLE" into qt-qpr1-dev am:...

[automerger skipped] Merge "Use FLAG_IMMUTABLE" into qt-qpr1-dev am: 7a87f63a -s ours am: 0485a8af -s ours am: b95f6990 -s ours am: d763aa4c -s ours am: fd03121a -s ours

am skip reason: Change-Id If127b73c975b5b3f004500de7f9baa6a7bc00ce4 with SHA-1 7e9eb5fb is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/11402660

Change-Id: Ic83613c781205cce9219069ff97fd01c93e90288