drm/gma500: Convert to generic encoder funcs

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 362dd2a..e0e7eb0 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -704,7 +704,7 @@
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    head) {
 		struct psb_intel_encoder *psb_intel_encoder =
-			psb_intel_attached_encoder(connector);
+						gma_attached_encoder(connector);
 		struct drm_encoder *encoder = &psb_intel_encoder->base;
 		int crtc_mask = 0, clone_mask = 0;