mpeg2: remove unused includes from header

The MPEG2 header doesn't need any header, since it's only using pointers.
Remove them, and add them to the mpeg2 file when needed.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

src/mpeg2.c

@@ -23,8 +23,10 @@
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include "context.h"
 #include "sunxi_cedrus.h"
 #include "mpeg2.h"
+#include "surface.h"
 
 #include <assert.h>
 #include <string.h>

src/mpeg2.h

@@ -26,12 +26,8 @@
 #ifndef _MPEG2_H_
 #define _MPEG2_H_
 
-#include <va/va_backend.h>
-
-#include "context.h"
-#include "buffer.h"
-
-#include "surface.h"
+struct object_surface;
+struct sunxi_cedrus_driver_data;
 
 int mpeg2_set_controls(struct sunxi_cedrus_driver_data *driver_data,
 		       struct object_surface *surface_object);