dlx: camera: FFC doesn't like jpeg rotation

Prior to this change all video from the FFC was upside down since
the CAF camera merge.

The old camera code never set the rotation param for the FFC but
the new code does.  Just discard any rotation requested by the
camera code for video on the FFC.

Change-Id: If526437cac3acbaaedb12b1a39bedfd2ab32b5cf