drm/vmwgfx: Make check_modeset() use the new atomic iterator macros.

I don't think the checking of resources in this function is very
atomic-like, but it should definitely not use a macro that's about
to be removed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-6-maarten.lankhorst@linux.intel.com
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[mlankhorst: Make function static (danvet)]

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

@@ -1527,7 +1527,7 @@ err_out:
  * RETURNS
  * Zero for success or -errno
  */
-int
+static int
 vmw_kms_atomic_check_modeset(struct drm_device *dev,
 			     struct drm_atomic_state *state)
 {
@@ -1536,8 +1536,7 @@ vmw_kms_atomic_check_modeset(struct drm_device *dev,
 	struct vmw_private *dev_priv = vmw_priv(dev);
 	int i;
 
-
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
+	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
 		unsigned long requested_bb_mem = 0;
 
 		if (dev_priv->active_display_unit == vmw_du_screen_target) {