ARM: dts: msm: Reduce MDSS control power-on delay on msm8909

Reduce the control power on delay as the regulator
api guaranties that regulator is enabled. This change
reduces the post regulator on delay for control to avoid
latency during resume.

Change-Id: Idd0fc88e4678c53a84dacb5c693cbf985f3da1e2
Signed-off-by: Ramakant Singh <ramaka@codeaurora.org>