drm: remove drm_file_t, drm_device_t and drm_head_t typedefs

some drivers still todo.

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/via_dmablit.h b/drivers/char/drm/via_dmablit.h
index f4036cd..6f6a513 100644
--- a/drivers/char/drm/via_dmablit.h
+++ b/drivers/char/drm/via_dmablit.h
@@ -59,7 +59,7 @@
 } drm_via_sg_info_t;
 
 typedef struct _drm_via_blitq {
-	drm_device_t *dev;
+	struct drm_device *dev;
 	uint32_t cur_blit_handle;
 	uint32_t done_blit_handle;
 	unsigned serviced;