Fix up shape operator test errors

Update serialization_lib to store SHAPE as INT64.

Signed-off-by: Jeremy Johnson <jeremy.johnson@arm.com>
Change-Id: Ie589cd6670dc79b77df981c81cd7c27b982f20fa
diff --git a/verif/generator/tosa_utils.py b/verif/generator/tosa_utils.py
index 33db95f..6387d06 100644
--- a/verif/generator/tosa_utils.py
+++ b/verif/generator/tosa_utils.py
@@ -56,7 +56,7 @@
     """Types supported by the new data generation and compliance flow."""
     if isinstance(dtype, list) or isinstance(dtype, tuple):
         dtype = dtype[0]
-    return dtype in (DType.FP32, DType.FP16, DType.SHAPE)
+    return dtype in (DType.FP32, DType.FP16)
 
 
 def getOpNameFromOpListName(opName):