drm/nouveau/devinit: run devinit scripts right after preinit

This ensures we have a valid mask of disabled engines before we start
trying to execute fini()/init() on the subdevs, potentially touching
devices that don't exist.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2167,7 +2167,9 @@ nvkm_device_preinit(struct nvkm_device *device)
 		}
 	}
 
-	/*XXX: devinit */
+	ret = nvkm_devinit_post(device->devinit, &device->disable_mask);
+	if (ret)
+		goto fail;
 
 	time = ktime_to_us(ktime_get()) - time;
 	nvdev_trace(device, "preinit completed in %lldus\n", time);