COMPMID-1710: Define missed specializations for comparisons

Change-Id: I0de1ec9dc4164014eb89204ec860ff3aaefa14df
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/584
Reviewed-by: George Wort <george.wort@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/src/runtime/CL/functions/CLComparison.cpp b/src/runtime/CL/functions/CLComparison.cpp
index 0c02962..86c9c31 100644
--- a/src/runtime/CL/functions/CLComparison.cpp
+++ b/src/runtime/CL/functions/CLComparison.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 ARM Limited.
+ * Copyright (c) 2018-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -75,4 +75,12 @@
 {
     return CLComparisonKernel::validate(input1, input2, output, COP);
 }
+
+// Supported Specializations
+template class CLComparisonStatic<ComparisonOperation::Equal>;
+template class CLComparisonStatic<ComparisonOperation::NotEqual>;
+template class CLComparisonStatic<ComparisonOperation::Greater>;
+template class CLComparisonStatic<ComparisonOperation::GreaterEqual>;
+template class CLComparisonStatic<ComparisonOperation::Less>;
+template class CLComparisonStatic<ComparisonOperation::LessEqual>;
 } // namespace arm_compute