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

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

Change-Id: I8f0ee5c7a302bf12d551ba406c6ea8d8f1d05f15
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>