COMPMID-1008: Fix Doxygen issues

Change-Id: Ie73d8771f85d1f5b059f3a56f1bbd73c98e94a38
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/124723
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/CL/CLTensor.h b/arm_compute/runtime/CL/CLTensor.h
index 2c685d1..e05f307 100644
--- a/arm_compute/runtime/CL/CLTensor.h
+++ b/arm_compute/runtime/CL/CLTensor.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2017 ARM Limited.
+ * Copyright (c) 2016-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -76,6 +76,7 @@
     mutable CLTensorAllocator _allocator; /**< Instance of the OpenCL tensor allocator */
 };
 
+/** OpenCL Image */
 using CLImage = CLTensor;
 }
 #endif /*__ARM_COMPUTE_CLTENSOR_H__ */