COMPMID-3576: Nightly failure: NEON/PoolingLayer/Float/FP16/MaxUnpooling S10

Extend NEPoolingLayer max pooling to extract indices for FP16

Signed-off-by: Sheri Zhang <sheri.zhang@arm.com>
Change-Id: I5a7c754be353e4c2c5d0ab3794e9427408d0c4fa
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3580
Reviewed-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/validation/reference/MaxUnpoolingLayer.cpp b/tests/validation/reference/MaxUnpoolingLayer.cpp
index 134f397..880018e 100644
--- a/tests/validation/reference/MaxUnpoolingLayer.cpp
+++ b/tests/validation/reference/MaxUnpoolingLayer.cpp
@@ -99,6 +99,9 @@
 template SimpleTensor<float> max_unpooling_layer(const SimpleTensor<float> &src, const PoolingLayerInfo &info,
                                                  const QuantizationInfo &output_qinfo, SimpleTensor<uint32_t> &indices,
                                                  TensorShape output_shape, DataLayout data_layout);
+template SimpleTensor<half> max_unpooling_layer(const SimpleTensor<half> &src, const PoolingLayerInfo &info,
+                                                const QuantizationInfo &output_qinfo, SimpleTensor<uint32_t> &indices,
+                                                TensorShape output_shape, DataLayout data_layout);
 
 } // namespace reference
 } // namespace validation