msm8974-regulator.dtsi: adjust GFX regulator parameters

settings based on qcom documentation

Signed-off-by: Paul Reioux <reioux@gmail.com>
update defconfig
cpufreq: mcm8974: raise all voltages by 25mV (back to JB kernel levels)
mdss: provide "early suspend" support for X governors

now that they've deprecated real early suspend, use mdss panel driver
to determine whether screen is on or off

Conflicts:

	drivers/video/msm/mdss/mdss_mdp_overlay.c

Conflicts:

	drivers/video/msm/mdss/mdss_samsung_dsi_panel.c
mdss: add debugging to panel unknown event
mdss: ignore RESET events