drm/gma500/cdv: Convert to gma_crtc_dpms()

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

diff --cc drivers/gpu/drm/gma500/cdv_intel_display.c
Simple merge

diff --cc drivers/gpu/drm/gma500/gma_display.c
Simple merge

diff --cc drivers/gpu/drm/gma500/gma_display.h
Simple merge