MLBEDSW-4993: TFLite mapping error for Wav2Letter

Previous to this commit some networks were failing due
one or more options in the TFLite mapping being
incorrect after the update to match TF 2.5.
This commit reverts those changes.

Signed-off-by: Dwight Lidman <dwight.lidman@arm.com>
Change-Id: Ia0b577ca44d76486fc3e0ea9780e0dc1d2baf65e
diff --git a/ethosu/vela/tflite_mapping.py b/ethosu/vela/tflite_mapping.py
index e0f2493..33117eb 100644
--- a/ethosu/vela/tflite_mapping.py
+++ b/ethosu/vela/tflite_mapping.py
@@ -567,9 +567,7 @@
     BuiltinOperator.RELU6: (Op.Relu6, None, TFLITE_IFM_INDICES),
     BuiltinOperator.RESHAPE: (
         Op.Reshape,
-        OptionsSerializer(
-            "ReshapeOptions", (("new_shape", is_int_vec), "new_shape_as_numpy", "new_shape_is_none", "new_shape_length")
-        ),
+        OptionsSerializer("ReshapeOptions", (("new_shape", is_int_vec),)),
         TFLITE_IFM_INDICES,
     ),
     BuiltinOperator.RESIZE_BILINEAR: (
@@ -654,10 +652,7 @@
     BuiltinOperator.DIV: (Op.Div, OptionsSerializer("DivOptions", (fused_act,)), TFLITE_NO_INDICES),
     BuiltinOperator.SQUEEZE: (
         Op.Squeeze,
-        OptionsSerializer(
-            "SqueezeOptions",
-            (("squeeze_dims", is_int_vec), "squeeze_dims_as_numpy", "squeeze_dims_is_none", "squeeze_dims_length"),
-        ),
+        OptionsSerializer("SqueezeOptions", (("squeeze_dims", is_int_vec),),),
         TFLITE_IFM_INDICES,
     ),
     BuiltinOperator.UNIDIRECTIONAL_SEQUENCE_LSTM: (