Merge commit '7319d94ff1ca898c36d2da8dd0cd8469d91bc5af' * commit '7319d94ff1ca898c36d2da8dd0cd8469d91bc5af': Add Event log for RAT switch.
Merge commit '7319d94ff1ca898c36d2da8dd0cd8469d91bc5af' * commit '7319d94ff1ca898c36d2da8dd0cd8469d91bc5af': Add Event log for RAT switch.