clk: mdss: implement new pll re-locking sequence

The new sequence is intended to improve pll locking time. This patch
is to implement locking pll using stored codes and bypassing
calibration.

Change-Id: I1a26843b5d784984dff4fee0e17841cfc1be37cc
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>