COMPMID-556: Rename Error to Status and inverse logic

Change-Id: Ib57d4f7177cc6179302bda7ad870acb8bd3825f5
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/112115
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/src/core/CL/kernels/CLBatchNormalizationLayerKernel.cpp b/src/core/CL/kernels/CLBatchNormalizationLayerKernel.cpp
index 62a203c..663b044 100644
--- a/src/core/CL/kernels/CLBatchNormalizationLayerKernel.cpp
+++ b/src/core/CL/kernels/CLBatchNormalizationLayerKernel.cpp
@@ -39,10 +39,10 @@
 
 namespace
 {
-Error validate_arguments(const ITensorInfo *input, const ITensorInfo *output,
-                         const ITensorInfo *mean, const ITensorInfo *var,
-                         const ITensorInfo *beta, const ITensorInfo *gamma,
-                         float epsilon)
+Status validate_arguments(const ITensorInfo *input, const ITensorInfo *output,
+                          const ITensorInfo *mean, const ITensorInfo *var,
+                          const ITensorInfo *beta, const ITensorInfo *gamma,
+                          float epsilon)
 {
     ARM_COMPUTE_UNUSED(epsilon);
     ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::QS8, DataType::QS16, DataType::F16, DataType::F32);
@@ -58,10 +58,10 @@
         ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_FIXED_POINT(input, output);
     }
 
-    return Error{};
+    return Status{};
 }
 
-std::pair<Error, Window> validate_and_configure_window(ITensorInfo *input, ITensorInfo *output)
+std::pair<Status, Window> validate_and_configure_window(ITensorInfo *input, ITensorInfo *output)
 {
     if(output != nullptr)
     {
@@ -87,7 +87,7 @@
         window_changed = update_window_and_padding(win, input_access);
     }
 
-    Error err = (window_changed) ? ARM_COMPUTE_CREATE_ERROR(ErrorCode::RUNTIME_ERROR, "Insufficient Padding!") : Error{};
+    Status err = (window_changed) ? ARM_COMPUTE_CREATE_ERROR(ErrorCode::RUNTIME_ERROR, "Insufficient Padding!") : Status{};
     return std::make_pair(err, win);
 }
 } // namespace
@@ -146,15 +146,15 @@
     ICLKernel::configure(win_config.second);
 }
 
-Error CLBatchNormalizationLayerKernel::validate(const ITensorInfo *input, const ITensorInfo *output,
-                                                const ITensorInfo *mean, const ITensorInfo *var,
-                                                const ITensorInfo *beta, const ITensorInfo *gamma,
-                                                float epsilon)
+Status CLBatchNormalizationLayerKernel::validate(const ITensorInfo *input, const ITensorInfo *output,
+                                                 const ITensorInfo *mean, const ITensorInfo *var,
+                                                 const ITensorInfo *beta, const ITensorInfo *gamma,
+                                                 float epsilon)
 {
     ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(input, output, mean, var, beta, gamma, epsilon));
     ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(input->clone().get(), (output == nullptr) ? nullptr : output->clone().get()).first);
 
-    return Error{};
+    return Status{};
 }
 
 void CLBatchNormalizationLayerKernel::run(const Window &window, cl::CommandQueue &queue)