Move the CallManager registerPhone into GsmCdmaPhone am: 6b04a4a212

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/13191256

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5a4095055b938a87b2b04718b17400f7bb9079e9