IVGCVSW-863 calculate_max_window..() family takes ValidRegion

Change-Id: I91e39713ffa580e9d2213988ad3517a8a41bf4e8
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/114013
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/src/core/GLES_COMPUTE/kernels/GCDepthConcatenateLayerKernel.cpp b/src/core/GLES_COMPUTE/kernels/GCDepthConcatenateLayerKernel.cpp
index 1aac250..4eceab8 100644
--- a/src/core/GLES_COMPUTE/kernels/GCDepthConcatenateLayerKernel.cpp
+++ b/src/core/GLES_COMPUTE/kernels/GCDepthConcatenateLayerKernel.cpp
@@ -106,7 +106,7 @@
     AccessWindowRectangle  input_access(input->info(), -_left_right, -_top_bottom, num_elems_read_per_iteration, num_rows_read_per_iteration);
     AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
     update_window_and_padding(win, input_access, output_access);
-    output_access.set_valid_region(win, ValidRegion(Coordinates(0, 0), output->info()->tensor_shape()));
+    output_access.set_valid_region(win, ValidRegion(Coordinates(), output->info()->tensor_shape()));
 
     IGCKernel::configure(win);
 }