mga: switch compat ioctls to drm_ioctl_kernel()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 8a8b307..3358211 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -719,6 +719,7 @@ long drm_ioctl_kernel(struct file *file, drm_ioctl_t *func, void *kdata,
 	}
 	return retcode;
 }
+EXPORT_SYMBOL(drm_ioctl_kernel);
 
 /**
  * drm_ioctl - ioctl callback implementation for DRM drivers