gma500: Move the API

Finally move the API where it can be seen

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

drivers/gpu/drm/gma500/mid_bios.c

@@ -25,7 +25,7 @@
 
 #include <drm/drmP.h>
 #include <drm/drm.h>
-#include "psb_drm.h"
+#include "gma_drm.h"
 #include "psb_drv.h"
 #include "mid_bios.h"