IVGCVSW-3467 Add CL Backend support for Pad_v2 with Unit Test

Signed-off-by: FinnWilliamsArm <Finn.Williams@arm.com>
Change-Id: I4c51e49ef57065e9fb0038175e67290c59d5f396
diff --git a/src/backends/cl/workloads/ClPadWorkload.cpp b/src/backends/cl/workloads/ClPadWorkload.cpp
index 8fd62f2..1c072ba 100644
--- a/src/backends/cl/workloads/ClPadWorkload.cpp
+++ b/src/backends/cl/workloads/ClPadWorkload.cpp
@@ -31,7 +31,9 @@
 
     arm_compute::PaddingList padList = static_cast<arm_compute::PaddingList>(reversed_PadList);
 
-    m_Layer.configure(&input, &output, padList);
+    arm_compute::PixelValue pixelValue = descriptor.m_Parameters.m_PadValue;
+
+    m_Layer.configure(&input, &output, padList, pixelValue);
 }
 
 void ClPadWorkload::Execute() const