[automerger skipped] Fix CarrierServiceConnection binding leak in CarrierConfigLoader am: c590122851 -s ours am: 01cc3c5f5a -s ours

am skip reason: Merged-In If7926102f3afb74fbab5231c2875fbad5a69c7e3 with SHA-1 dba4ccd5f8 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/15881351

Change-Id: Ic97eb1023736fd4f8df8c31437452f49acee7056