disp: msm: dsi: Update mode population logic for POMS feature

This change adds support to populate one command mode for
video mode panels supporting panel operating mode switch
feature.

Change-Id: I850b889ebfa8c2ee1406ad946061b96143537b09
Signed-off-by: Lipsa Rout <lrout@codeaurora.org>
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>