COMPMID-2194: Add identity function to NEActivationLayerKernel.cpp

Change-Id: Id9bc53722b7dfe277812e9e1d749ac4cea35260a
Signed-off-by: Usama Arif <usama.arif@arm.com>
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/184712
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1143
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Georgios Pinitas <georgios.pinitas@arm.com>
diff --git a/tests/datasets/ActivationFunctionsDataset.h b/tests/datasets/ActivationFunctionsDataset.h
index 147c5ae..c5dc28f 100644
--- a/tests/datasets/ActivationFunctionsDataset.h
+++ b/tests/datasets/ActivationFunctionsDataset.h
@@ -51,7 +51,8 @@
                             ActivationLayerInfo::ActivationFunction::SOFT_RELU,
                             ActivationLayerInfo::ActivationFunction::SQRT,
                             ActivationLayerInfo::ActivationFunction::SQUARE,
-                            ActivationLayerInfo::ActivationFunction::TANH
+                            ActivationLayerInfo::ActivationFunction::TANH,
+                            ActivationLayerInfo::ActivationFunction::IDENTITY
     })
     {
     }