Merge changes from topic "ims-hal-fw"

* changes:
  Replace ImsFailureReason with SuggestedAction
  Fix the way to detect the Radio Aidl HAL version
  Update triggerImsDeregistration to specify the reason
  Add triggerEpsFallback to RadioImsProxy
  Update ANBR apis
  Support IRadio Ims module interface in the mock modem
  Add getInterfaceHash and getInterfaceVersion for IRadioIms
  Add triggerImsDeregistration to ImsIndication
  Fix NPE with startImsTrafficResponse
  Update RIL for IRadioIms HAL
  Add RadioImaProxy, ImsResponse, and ImsIndication for IRadioIms
  Add RadioImaProxy, ImsResponse, and ImsIndication for IRadioIms