[automerger skipped] switch TelecomManager List getters to ParceledListSlice am: 9f8c770945 am: 7728d397a6 -s ours am: a5fccd0984 -s ours

am skip reason: Merged-In Ibc3814dabd59cf9f0f9505b88f2146a4c3c5e015 with SHA-1 deec8016b2 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/19322655

Change-Id: I1cfd96eff2068e32b9b001a3b30537c2c045103b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>