msm: camera: Add support for YUV422 formats

1.Adding support for YUV422 pixel formats to ISP output.
This formats will be only supported by the RDI dump,
for sensor which outputs this kind of formats.

2. fix the checkpatch errors

Change-Id: I13513626146dc9d4767f2f42cf4c1bd662697e0a
Signed-off-by: Aditya Jonnalagadda <ajonnala@codeaurora.org>