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/src/runtime/NEON/functions/NEHistogram.cpp b/src/runtime/NEON/functions/NEHistogram.cpp
index 40ea3a1..1b093d6 100644
--- a/src/runtime/NEON/functions/NEHistogram.cpp
+++ b/src/runtime/NEON/functions/NEHistogram.cpp
@@ -30,7 +30,6 @@
 #include "arm_compute/core/Validate.h"
 #include "arm_compute/runtime/NEON/NEScheduler.h"
 #include "src/core/NEON/kernels/NEHistogramKernel.h"
-#include "support/MemorySupport.h"
 
 namespace arm_compute
 {
@@ -51,7 +50,7 @@
     _local_hist.resize(_local_hist_size);
 
     // Configure kernel
-    _histogram_kernel = arm_compute::support::cpp14::make_unique<NEHistogramKernel>();
+    _histogram_kernel = std::make_unique<NEHistogramKernel>();
     _histogram_kernel->configure(input, output, _local_hist.data(), _window_lut.data());
 }