COMPMID-959: Fix valid region for Scale by always setting full shape

Change-Id: Idc2d004713768ae73e157674d15c928cca0992d7
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/122703
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/src/core/Helpers.cpp b/src/core/Helpers.cpp
index 3ee0fa7..cbebf8a 100644
--- a/src/core/Helpers.cpp
+++ b/src/core/Helpers.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2018 ARM Limited.
+ * Copyright (c) 2016-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -173,3 +173,15 @@
 
     return window;
 }
+
+ValidRegion arm_compute::calculate_valid_region_scale(const ITensorInfo &src_info, const TensorShape &dst_shape,
+                                                      InterpolationPolicy interpolate_policy, SamplingPolicy sampling_policy, bool border_undefined)
+{
+    /* TODO (COMPMID-959) : Fix scale valid region */
+    arm_compute::utility::ignore_unused(src_info, interpolate_policy, sampling_policy, border_undefined);
+
+    // Setup output valid region
+    ValidRegion valid_region{ Coordinates(), dst_shape };
+
+    return valid_region;
+}
\ No newline at end of file