Disable FP16 tests compilation on Multi-Isa v8a

Resolves: [COMPMID-6791]
Signed-off-by: Mohammed Suhail Munshi <MohammedSuhail.Munshi@arm.com>
Change-Id: Idae6ddb0e9655ec096f25917f0a44eb57aaef908
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/11076
Benchmark: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez Tello <pablo.tello@arm.com>
diff --git a/tests/validation/NEON/ConvolutionLayer.cpp b/tests/validation/NEON/ConvolutionLayer.cpp
index 98a5be5..62690c05 100644
--- a/tests/validation/NEON/ConvolutionLayer.cpp
+++ b/tests/validation/NEON/ConvolutionLayer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2023 Arm Limited.
+ * Copyright (c) 2017-2024 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -957,7 +957,7 @@
     validate(Accessor(_target), _reference, rel_tolerance_f32, 0.f, float(abs_tolerance_f32));
 }
 
-#if defined(ARM_COMPUTE_ENABLE_FP16)
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
 FIXTURE_DATA_TEST_CASE(RunSmallHalf, VarWidth<half>, framework::DatasetMode::ALL,
                        combine(combine(datasets::SmallConvolutionLayerDataset(),
                                        framework::dataset::make("DataLayout", { DataLayout::NHWC })),
@@ -966,7 +966,7 @@
     // Validate output
     validate(Accessor(_target), _reference, rel_tolerance_f16, 0.f, half(abs_tolerance_f16));
 }
-#endif // ARM_COMPUTE_ENABLE_FP16
+#endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
 
 #if defined(ARM_COMPUTE_ENABLE_BF16)
 template <typename ScalarType>
@@ -998,7 +998,7 @@
     validate(Accessor(_target), _reference, rel_tolerance_f32, 0.f, float(abs_tolerance_f32));
 }
 
-#if defined(ARM_COMPUTE_ENABLE_FP16)
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
 FIXTURE_DATA_TEST_CASE(NEGEMMRunSmallHalf, NEGEMMVarWidth<half>, framework::DatasetMode::ALL,
                        combine(combine(datasets::SmallConvolutionLayerDataset(),
                                        framework::dataset::make("DataLayout", { DataLayout::NHWC })),
@@ -1007,7 +1007,7 @@
     // Validate output
     validate(Accessor(_target), _reference, rel_tolerance_f16, 0.f, half(abs_tolerance_f16));
 }
-#endif // ARM_COMPUTE_ENABLE_FP16
+#endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
 
 #if defined(ARM_COMPUTE_ENABLE_BF16)
 template <typename ScalarType>