gpu: drm: Replace bare "unsigned" with "unsigned int"

Replaced the type "unsigned" with "unsigned int" because it is
preferred. Issue detected by checkpatch.pl.
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210412105309.27156-1-fmdefrancesco@gmail.com

drivers/gpu/drm/drm_atomic.c

@@ -1302,8 +1302,8 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
 	struct drm_crtc_state *new_crtc_state;
 	struct drm_connector *conn;
 	struct drm_connector_state *conn_state;
-	unsigned requested_crtc = 0;
-	unsigned affected_crtc = 0;
+	unsigned int requested_crtc = 0;
+	unsigned int affected_crtc = 0;
 	int i, ret = 0;
 
 	DRM_DEBUG_ATOMIC("checking %p\n", state);