dts: msm8974pro: initial Krait 8974AB overclocking

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:
	arch/arm/boot/dts/msm8974pro.dtsi
DTS: adjust the regulator settings to support OC

Signed-off-by: Paul Reioux <reioux@gmail.com>
msm: mdss: Adding lcd notifier

Supports notifier for start&end of LCD power on&off

Change-Id: Idaa685a2c554286da5f764519305d830c4d1a1bd
Signed-off-by: Se Hun Kim <sean2.kim@lge.com>
Signed-off-by: Jongrak Kwon <jongrak.kwon@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>

Conflicts:
	drivers/video/msm/mdss/Makefile
	drivers/video/msm/mdss/mdss_dsi.c