Merge "limit TelecomManager#registerPhoneAccount to 10" into qt-dev am: aea733a58c am: df85b72ded am: a6716a4b17 am: c59fa22d50 am: 5e10c461bd

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/16905018

Change-Id: Iaafd88342e62360dc0dbd64517abec55b50106f8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>