[automerger skipped] Use FLAG_IMMUTABLE for InstallCarrierAppUtils am:...

[automerger skipped] Use FLAG_IMMUTABLE for InstallCarrierAppUtils am: 76decc9e am: fa5672c8 am: 02a62071 -s ours am: 6b0c941f -s ours am: d3fe173f -s ours am: a5eb9145 -s ours am: ac306a39 -s ours

am skip reason: Change-Id I8ac155bf53e33474e1fcdb2466743a1e05b92399 with SHA-1 f78245a3 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/11493532

Change-Id: Ib9e118ae7e25e9b0f1e339421cb347b27cc346f0