Add negative testing support for reduce operators

 * Negative testing support added for the following operators:
reduce_all, reduce_any, reduce_max, reduce_min, reduce_product, reduce_sum

Change-Id: Ife4f0307b681510e8910a23a39efc127c82ae120
Signed-off-by: Matthew Haddon <matthew.haddon@arm.com>
diff --git a/verif/tosa_error_if.py b/verif/tosa_error_if.py
index 6656645..8710885 100644
--- a/verif/tosa_error_if.py
+++ b/verif/tosa_error_if.py
@@ -32,4 +32,8 @@
     RankMismatch = "RankMismatch"
     InputZeroPointNotZero = "InputZeroPointNotZero"
     OutputZeroPointNotZero = "OutputZeroPointNotZero"
+    AxisSmallerZero = "AxisSmallerZero"
+    AxisLargerRank = "AxisLargerRank"
+    ShapeOfAxisNotOne = "ShapeOfAxisNotOne"
+