video: msm: Clear post processing settings on pipe unset

Clear the post processing settings of the pipe when pipe has been unset.
Post processing settings should not remain on the pipe when it is
deallocated.

Change-Id: I61c595a9480563c9aba2518e1358b699fae63d14
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
3 files changed