radeon: remove _DRM_DRIVER from the preadded sarea map

This shouldn't be there and is what broke r600 late in the 2.6.30
release cycle with Ben's patch.

Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_cp.c

@@ -2109,7 +2109,7 @@ int radeon_master_create(struct drm_device *dev, struct drm_master *master)
 
 	/* prebuild the SAREA */
 	sareapage = max_t(unsigned long, SAREA_MAX, PAGE_SIZE);
-	ret = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK|_DRM_DRIVER,
+	ret = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK,
 			 &master_priv->sarea);
 	if (ret) {
 		DRM_ERROR("SAREA setup failed\n");