ARM: dts: msm: reduce control and panel power on delays

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

Change-Id: Icf2363845335e1f1b3421f8d266d9fd3d34b7c3a
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>