IVGCVSW-6862 Add GATHERNd Neon workload

* Changing the test in the delegate to match one of the unit tests


Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: I553ca266116ba8ee173fc951ab1ffd2b6eed1428
diff --git a/src/backends/neon/backend.mk b/src/backends/neon/backend.mk
index 0d6fd80..c522df6 100644
--- a/src/backends/neon/backend.mk
+++ b/src/backends/neon/backend.mk
@@ -48,6 +48,7 @@
         workloads/NeonFloorFloatWorkload.cpp \
         workloads/NeonFullyConnectedWorkload.cpp \
         workloads/NeonGatherWorkload.cpp \
+        workloads/NeonGatherNdWorkload.cpp \
         workloads/NeonInstanceNormalizationWorkload.cpp \
         workloads/NeonL2NormalizationFloatWorkload.cpp \
         workloads/NeonLogWorkload.cpp \