msm: mdss: fix the sequence for pinctrl_set_state and panel reset

Pinctrl needs to be set to active state before we do the panel
reset during panel ON sequence. Similarly, it needs to be set to
suspend state after the GPIO IN_OUT registers are set to zero.
This change takes care of fixing this sequence.

Change-Id: I666068f88d4489acb0da261efb01e26929e42483
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>