Merge "Add flag to set call extra on incoming call for DSDA devices" into main

    description: "This flag is created to notify emergency registration state changed."

    bug:"312101946"

}

flag {

    name: "call_extra_for_non_hold_supported_carriers"

    namespace: "telephony"

    description: "For DSDA devices, controls whether the existing call will be dropped when an incoming call on a different sub is answered, when either sub does not support hold capability."

    bug:"315993953"

}