CCodec: Updates to RevertOutputFormatIfNeeded

- Ignore signalling the changes in the following as output
  format change.
  KEY_FRAME_RATE, KEY_MAX_WIDTH, KEY_MAX_HEIGHT

- Call RevertOutputFormatIfNeeded in signalResume()

Bug: 180508570
Test: atest CtsMediaTestCases:android.media.cts.AdaptivePlaybackTest

Change-Id: Ic3ebd23b825953454779afc6f8a05f4a67c6dca3