fix scalar scales shape in make_quantized_test_activations

Signed-off-by: Bill Nell <bnell@redhat.com>

Author: bnellnm

tests/kernels/moe/utils.py

@@ -166,6 +166,9 @@ def make_quantized_test_activations(
                     a[e], None, use_per_token_if_dynamic=per_act_token_quant)
         a_scale = torch.stack(a_scale)
 
+        if not per_act_token_quant and block_shape is None:
+            a_scale = a_scale.view(E, 1, 1)
+
     return a, a_q, a_scale