COMPMID-2177 Fix clang warnings

Change-Id: I78039db8c58d7b14a042c41e54c25fb9cb509bf7
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1092
Reviewed-by: VidhyaSudhan Loganathan <vidhyasudhan.loganathan@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/CL/kernels/CLGaussian5x5Kernel.cpp b/src/core/CL/kernels/CLGaussian5x5Kernel.cpp
index bd523c8..3b45b07 100644
--- a/src/core/CL/kernels/CLGaussian5x5Kernel.cpp
+++ b/src/core/CL/kernels/CLGaussian5x5Kernel.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2017 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -29,17 +29,17 @@
 
 void CLGaussian5x5HorKernel::configure(const ICLTensor *input, ICLTensor *output, bool border_undefined)
 {
-    const int16_t matrix[] = { 1, 4, 6, 4, 1 };
+    const std::array<int16_t, 5> matrix = { 1, 4, 6, 4, 1 };
 
     // Set arguments
-    CLSeparableConvolution5x5HorKernel::configure(input, output, matrix, border_undefined);
+    CLSeparableConvolution5x5HorKernel::configure(input, output, matrix.data(), border_undefined);
 }
 
 void CLGaussian5x5VertKernel::configure(const ICLTensor *input, ICLTensor *output, bool border_undefined)
 {
-    const uint32_t scale    = 256;
-    const int16_t  matrix[] = { 1, 4, 6, 4, 1 };
+    const uint32_t scale = 256;
+    const std::array<int16_t, 5> matrix = { 1, 4, 6, 4, 1 };
 
     // Set arguments
-    CLSeparableConvolution5x5VertKernel::configure(input, output, matrix, scale, border_undefined);
+    CLSeparableConvolution5x5VertKernel::configure(input, output, matrix.data(), scale, border_undefined);
 }