COMPMID-976: Fix warnings for ndk-r16b

Change-Id: Ie6f1c2a88ece658eb491caa2c4838fb601104850
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/122302
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
diff --git a/arm_compute/core/Dimensions.h b/arm_compute/core/Dimensions.h
index 58ffd7f..5319346 100644
--- a/arm_compute/core/Dimensions.h
+++ b/arm_compute/core/Dimensions.h
@@ -50,7 +50,7 @@
      */
     template <typename... Ts>
     explicit Dimensions(Ts... dims)
-        : _id{ { dims... } }, _num_dimensions{ sizeof...(dims) }
+        : _id{ { static_cast<T>(dims)... } }, _num_dimensions{ sizeof...(dims) }
     {
     }
 
diff --git a/arm_compute/core/NEON/kernels/convolution/winograd/gemm.hpp b/arm_compute/core/NEON/kernels/convolution/winograd/gemm.hpp
index 62a20c9..6e06db3 100644
--- a/arm_compute/core/NEON/kernels/convolution/winograd/gemm.hpp
+++ b/arm_compute/core/NEON/kernels/convolution/winograd/gemm.hpp
@@ -65,11 +65,11 @@
   const int c_row_stride
 ) {
   // Array access methods
-  const auto A = [a, M, K, a_row_stride] (const int i, const int j) -> TIn {
+  const auto A = [a, a_row_stride] (const int i, const int j) -> TIn {
     return a[i*a_row_stride + j];
   };
 
-  const auto B = [b, K, N, b_row_stride] (const int i, const int j) -> TIn {
+  const auto B = [b, b_row_stride] (const int i, const int j) -> TIn {
     return b[i*b_row_stride + j];
   };