Pass proper bmain to the updateDepgraph() of modifiers

This is mainly to make physics modifiers being able to work
with it. For other cases this main is not needed.

source/blender/modifiers/intern/MOD_lattice.c

@@ -92,6 +92,7 @@ static void foreachObjectLink(
 }
 
 static void updateDepgraph(ModifierData *md, DagForest *forest,
+                           struct Main *UNUSED(bmain),
                            struct Scene *UNUSED(scene),
                            Object *UNUSED(ob),
                            DagNode *obNode)