msm: mdss: update panel timings in upstream driver during vblank

During the controller configuration, some of the panel
timings could have been updated by the driver.
This change updates the panel information shared with the
upstream driver to keep updated the panel settings
that have changed after the controller setup.

Change-Id: I4d050d74f1aec50dbc294357ba0dace7c0940a16
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>