msm: camera: cpp: Avoid cpp frame access during error

In case cpp frame configuration hits error, cpp frame data
should be cleaned up and invalid output buffer info need not be
communicated to userspace. Added changes to avoid access to
cpp frame data struct in error case.

Change-Id: I6cf620fcd68f5055ff0e6f3d1a12bb468dafecc3
Signed-off-by: Sagar Gore <sgore@codeaurora.org>