Move the CallManager registerPhone into GsmCdmaPhone

After the user enable DSDS, the CallManager doesn't register the
new phone. It causes the new phone can't notify mmi dialog.

Fix: 173704265
Test: atest GsmCdmaPhoneTest (PASS)
Manual test: enable DSDS, then call *135#. (PASS)

Change-Id: Ide13656be4612c3249f7248190af1c3919932ad5
1 file changed