gma500/cdv: add the bits that don't need the new code

Based on bits from Yakui <yakui.zhao@intel.com>

We can import various little bits of code before we plumb it all
in and hopefully this way catch any regressions more easily.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/framebuffer.c

@@ -764,6 +764,10 @@ static void psb_setup_outputs(struct drm_device *dev)
 		        crtc_mask = dev_priv->ops->hdmi_mask;
 			clone_mask = (1 << INTEL_OUTPUT_HDMI);
 			break;
+		case INTEL_OUTPUT_DISPLAYPORT:
+			crtc_mask = (1 << 0) | (1 << 1);
+			clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT);
+			break;
 		}
 		encoder->possible_crtcs = crtc_mask;
 		encoder->possible_clones =