msm_fb: Add runtime mixer-2  output format configuration

Set mixer-2 output format using metadata_ioctl before
queuing buffer for write back from mdp. Default output
format is NV12. Mixer-2 support RGB_565, RGB_888,
ARGB_8888, XRGB_888 and NV12 as output format.

Change-Id: I34d307e65cbd8e9e3356c8b5928edca42624d261
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
4 files changed