COMPMID-1652 NEON Cleanup and add missing tests

Change-Id: I7b351f18a78ed8a250bf3a91ef320db61984146a
Reviewed-on: https://review.mlplatform.org/485
Reviewed-by: Isabella Gottardi <isabella.gottardi@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
diff --git a/tests/datasets/ImageFileDatasets.h b/tests/datasets/ImageFileDatasets.h
index 90a7f0d..88dfc8d 100644
--- a/tests/datasets/ImageFileDatasets.h
+++ b/tests/datasets/ImageFileDatasets.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 ARM Limited.
+ * Copyright (c) 2018-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -98,7 +98,6 @@
     {
         add_image_file("640x480.ppm");
         add_image_file("800x600.ppm");
-        add_image_file("1280x720.ppm");
     }
 };
 
@@ -108,6 +107,7 @@
 public:
     LargeImageFiles()
     {
+        add_image_file("1280x720.ppm");
         add_image_file("1920x1080.ppm");
         add_image_file("4160x3120.ppm");
         add_image_file("5120x3200.ppm");