Update CallWaitingController, SYNC_IMS_ONLY

Implement the configuration CALL_WAITING_SYNC_IMS_ONLY
Do not synchronize the service state between CS newtwork and IMS service.
If IMS service is registered, the change of user setting shall be handled
at the device without any communication with the network. Otherwise, the device
tries to communicate with the CS network to handle user's request.

Bug: 202463005
Test: atest

Change-Id: Ic8f5433e403ff3cc45e02d29d0aaeda24a1ba348
(cherry picked from commit 6acb43cdd8e993b6f977febacbdccc037737d1ac)
Merged-In: Ic8f5433e403ff3cc45e02d29d0aaeda24a1ba348