drm/nouveau: pass gpuobj alignment request down into backing allocator

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c
index ce9958a..0b8183e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_object.c
+++ b/drivers/gpu/drm/nouveau/nouveau_object.c
@@ -112,7 +112,7 @@
 		NV_DEBUG(dev, "global heap\n");
 
 		/* allocate backing pages, sets vinst */
-		ret = engine->instmem.populate(dev, gpuobj, &size);
+		ret = engine->instmem.populate(dev, gpuobj, &size, align);
 		if (ret) {
 			nouveau_gpuobj_ref(NULL, &gpuobj);
 			return ret;