Add ability to use KEY_DIAL_STRING_REPLACE_STRING_ARRAY for VoLTE calls.

Following similar logic for GSM and CDMA calls, adding support for
this carrier config key.

Bug: 139331290
Test: Manual test with carrier config override.
Test: Added new unit test for this case.
Change-Id: I21c011d5ec8f58629693d339903c3780c28dd54f