disp: msm: dsi: decrease log level of messages during modeset

Change decreases logs during a mode set in dsi_display and adds the
info to event logs.

Change-Id: I3bbe328f942008004c15b39230dd8be3e4cb64b5
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>