message: improve linear_add fusion code coverage
diff: @@ -2943,6 +2943,12 @@ class Tester(TestCase):
  LinearAdd(3, 32, bias=True),
  torch.rand(32, 3),
  kind_in_graph="aten::linear")
  + self._test_output_bf16(
  + LinearAdd(3, 32, bias=True),
  + torch.rand(32, 3),
  + kind_in_graph="ipex_prepack::linear_add_run",
  + kind_not_in_graph="aten::linear",
  + prec=5e-2)
  def test_output_linear_add_relu(self):
  for inplace in [True, False]:
  