[Test] Update test for convinputgenerator

tests/fpgadataflow/test_fpgadataflow_convinputgenerator.py

@@ -127,7 +127,7 @@ def prepare_inputs(input_tensor):
 # input datatype
 @pytest.mark.parametrize("idt", [DataType.BIPOLAR, DataType.INT2])
 # kernel size
-@pytest.mark.parametrize("k", [2, 3, 4])
+@pytest.mark.parametrize("k", [2, 3])
 # input dimension
 @pytest.mark.parametrize("ifm_dim", [6, 8])
 # input channels