Update default C++ standard to C++14

(3RDPARTY_UPDATE)

Resolves: COMPMID-3849

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I6369f112337310140e2d6c8e79630cd11138dfa0
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4544
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/validation/NEON/UNIT/TensorAllocator.cpp b/tests/validation/NEON/UNIT/TensorAllocator.cpp
index 273d2e0..ef19524 100644
--- a/tests/validation/NEON/UNIT/TensorAllocator.cpp
+++ b/tests/validation/NEON/UNIT/TensorAllocator.cpp
@@ -29,8 +29,6 @@
 #include "arm_compute/runtime/MemoryRegion.h"
 #include "arm_compute/runtime/NEON/functions/NEActivationLayer.h"
 
-#include "support/MemorySupport.h"
-
 #include "tests/Globals.h"
 #include "tests/Utils.h"
 #include "tests/framework/Asserts.h"
@@ -58,7 +56,7 @@
 
     // Allocate memory buffer
     const size_t total_size = info.total_size();
-    auto         data       = support::cpp14::make_unique<uint8_t[]>(total_size);
+    auto         data       = std::make_unique<uint8_t[]>(total_size);
 
     // Negative case : Import nullptr
     Tensor t1;
@@ -111,10 +109,10 @@
     const size_t total_size_in_elems = tensor.info()->tensor_shape().total_size();
     const size_t total_size_in_bytes = tensor.info()->total_size();
     size_t       space               = total_size_in_bytes + required_alignment;
-    auto         raw_data            = support::cpp14::make_unique<uint8_t[]>(space);
+    auto         raw_data            = std::make_unique<uint8_t[]>(space);
 
     void *aligned_ptr = raw_data.get();
-    support::cpp11::align(required_alignment, total_size_in_bytes, aligned_ptr, space);
+    std::align(required_alignment, total_size_in_bytes, aligned_ptr, space);
 
     ARM_COMPUTE_EXPECT(bool(tensor.allocator()->import_memory(aligned_ptr)), framework::LogLevel::ERRORS);
     ARM_COMPUTE_EXPECT(!tensor.info()->is_resizable(), framework::LogLevel::ERRORS);
@@ -160,7 +158,7 @@
 
     // Allocate and import tensor
     const size_t total_size_in_bytes = tensor.info()->total_size();
-    auto         raw_data            = support::cpp14::make_unique<uint8_t[]>(total_size_in_bytes);
+    auto         raw_data            = std::make_unique<uint8_t[]>(total_size_in_bytes);
 
     ARM_COMPUTE_EXPECT(bool(tensor.allocator()->import_memory(raw_data.get())), framework::LogLevel::ERRORS);
     ARM_COMPUTE_EXPECT(!tensor.info()->is_resizable(), framework::LogLevel::ERRORS);