gma500: mark psb_intel_sdvo_hdmi_sink_detect() as static

Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/psb_intel_sdvo.c

@@ -1301,7 +1301,7 @@ psb_intel_sdvo_get_analog_edid(struct drm_connector *connector)
 	return NULL;
 }
 
-enum drm_connector_status
+static enum drm_connector_status
 psb_intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
 {
 	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);