[Moe Refactor] Make Inplace Flag for FusedMoEModularKernel part of the constructor (#33375)

Signed-off-by: Bill Nell <bnell@redhat.com>
Co-authored-by: Robert Shaw <114415538+robertgshaw2-redhat@users.noreply.github.com>

tests/kernels/moe/test_deepgemm.py

@@ -115,6 +115,7 @@ def run_single_case(m, n, k, topk, num_experts, block_size):
             moe_config=make_dummy_moe_config(),
             quant_config=quant_config,
         ),
+        inplace=False,
     )
 
     # triton reference
@@ -135,7 +136,6 @@ def run_single_case(m, n, k, topk, num_experts, block_size):
         w2=w2,
         topk_weights=topk_weights,
         topk_ids=topk_ids,
-        inplace=False,
     )
     diff = calc_diff(out_deepgemm, out_triton)
     assert diff < 0.001, f"Diff exceeded 1%: {diff}"