gpu: add moduleparam.h to drivers/gpu/drm/drm_crtc_helper.c

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

drivers/gpu/drm/drm_crtc_helper.c

@@ -30,6 +30,7 @@
  */
 
 #include <linux/export.h>
+#include <linux/moduleparam.h>
 
 #include "drmP.h"
 #include "drm_crtc.h"