MLBEDSW-8491: Add support for Mirror pad

Change-Id: I3c13118e14195a5fb8e522a38b205b75fb07b74b
Signed-off-by: Rickard Bolin <rickard.bolin@arm.com>
diff --git a/ethosu/vela/tflite_model_semantic.py b/ethosu/vela/tflite_model_semantic.py
index eff40bc..1c258de 100644
--- a/ethosu/vela/tflite_model_semantic.py
+++ b/ethosu/vela/tflite_model_semantic.py
@@ -258,6 +258,9 @@
             Op.Transpose: [
                 TFLiteSemantic.constraint_tens_quant_none_check,
             ],
+            Op.MirrorPad: [
+                TFLiteSemantic.constraint_tens_quant_none_check,
+            ],
         }
         return generic_constraints_exclude_list