Scatter GPU Kernel Implementation for 1D tensors.

Resolves: [COMPMID-6891, COMPMID-6892]
Change-Id: I5b094fff1bff4c4c59cc44f7d6beab0e40133d8e
Signed-off-by: Mohammed Suhail Munshi <MohammedSuhail.Munshi@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/11394
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/validation/reference/ScatterLayer.h b/tests/validation/reference/ScatterLayer.h
index dc441a8..97d5e70 100644
--- a/tests/validation/reference/ScatterLayer.h
+++ b/tests/validation/reference/ScatterLayer.h
@@ -37,10 +37,10 @@
 namespace reference
 {
 template <typename T>
-SimpleTensor<T> scatter_layer_internal(const SimpleTensor<T> &src, const SimpleTensor<T> &update, const SimpleTensor<uint32_t> &indices, const TensorShape &shape, const ScatterInfo &info);
+SimpleTensor<T> scatter_layer_internal(const SimpleTensor<T> &src, const SimpleTensor<T> &update, const SimpleTensor<int32_t> &indices, const TensorShape &shape, const ScatterInfo &info);
 
 template <typename T>
-SimpleTensor<T> scatter_layer(const SimpleTensor<T> &src, const SimpleTensor<T> &update, const SimpleTensor<uint32_t> &indices, const TensorShape &shape, const ScatterInfo &info);
+SimpleTensor<T> scatter_layer(const SimpleTensor<T> &src, const SimpleTensor<T> &update, const SimpleTensor<int32_t> &indices, const TensorShape &shape, const ScatterInfo &info);
 } // namespace reference
 } // namespace validation
 } // namespace test