drm/vmwgfx: fix warning if config intel iommu is off.

Though I'm not really happy with how ugly this code is now.

Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

···
 		dev_priv->map_mode = vmw_dma_map_populate;
 #endif
 
+#ifdef CONFIG_INTEL_IOMMU
 out_fixup:
+#endif
 	if (dev_priv->map_mode == vmw_dma_map_populate &&
 	    vmw_restrict_iommu)
 		dev_priv->map_mode = vmw_dma_map_bind;