drm/i915: Make VLV_GUNIT_CLOCK_GATE register value more readable

Instead of 0x18xxxx use (VLV_DISPLAY_BASE + xxxx).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed