Add simple post commit reference model testing against Numpy

Only perform testing of this after build of ref model using postcommit pytest mark.

Signed-off-by: Jeremy Johnson <jeremy.johnson@arm.com>
Change-Id: I771a18d2c9cd4051fecafad3e6079b44f2ed62fa
diff --git a/verif/generator/tosa_arg_gen.py b/verif/generator/tosa_arg_gen.py
index ef84762..a65e220 100644
--- a/verif/generator/tosa_arg_gen.py
+++ b/verif/generator/tosa_arg_gen.py
@@ -29,8 +29,12 @@
     def getZeroPoint(testGen, dtype, error_name=None):
 
         if dtype == DType.INT8:
+            if testGen.args.zeropoint is not None:
+                return min(127, max(-128, testGen.args.zeropoint))
             return testGen.randInt(-128, 128)
         elif dtype == DType.UINT8:
+            if testGen.args.zeropoint is not None:
+                return min(255, max(0, testGen.args.zeropoint))
             return testGen.randInt(0, 256)
         elif error_name in [
             ErrorIf.InputZeroPointNotZero,