video:msm: Reset histogram when not read

Reset the histogram collection if there is no one waiting for it when it is
completed.

CRs-Fixed: 308367
CRs-Fixed: 305674
Change-Id: I76de44f237f842a1163d8b9f0783bf3457ff1d3d
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
1 file changed