Fix group fusion for AFOC

Summary:
X-link: pytorch/pytorch#122839

context:
https://fb.workplace.com/groups/1075192433118967/permalink/1401282167176657/

moving the changes to the group gemm op has compilation errors, see details in D55606636

Differential Revision: D55449814

Author: mengluy0125

userbenchmark/dynamo/dynamobench/_dynamo/utils.py

@@ -3203,3 +3203,9 @@ def get_user_object_from_id(obj_id):
 def store_user_object_weakref(obj):
     obj_id = id(obj)
     user_obj_id_to_weakref[obj_id] = weakref.ref(obj)
+
+
+def realize_inputs(inputs: List[torch.fx.Node]):
+    for inp in inputs:
+        if isinstance(inp, torch.fx.node.Node):
+            inp.meta["inductor_realize_to_strides"] = True