Revert "Revert "Stagefright: Allow setting high-framerates in CameraSource""

* This revert was required when using the old HFR/HSR code which
  is now replaced by MediaRecorder.setCaptureRate and setVideoFrameRate API.
  It's no longer needed as the old code was not forward ported to N
  and it breaks HSR functionality

This reverts commit 40358289.

Change-Id: I30f081d7c8a7582b9e78551c8bf1624f34d290a1