msm_fb: display: perform mixer flush on every commit

Mixer needs to be flushed on every commit instead of just when mixer cfg
changes to flush changes in blending configuration

CRs-Fixed: 336655
Change-Id: Ia56380eac1bd9dfb0795d930dc97a85dd30ba8a8
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
1 file changed