COMPMID-2057: Implement and test import memory interfaces.

Change-Id: I1559bea47ae6403177d248e2f7be47d5f1a6513f
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/956
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/arm_compute/core/CL/OpenCL.h b/arm_compute/core/CL/OpenCL.h
index 65cbb32..fc7083d 100644
--- a/arm_compute/core/CL/OpenCL.h
+++ b/arm_compute/core/CL/OpenCL.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -131,6 +131,9 @@
     DECLARE_FUNCTION_PTR(clEnqueueMarker);
     DECLARE_FUNCTION_PTR(clWaitForEvents);
 
+    // Third-party extensions
+    DECLARE_FUNCTION_PTR(clImportMemoryARM);
+
 #undef DECLARE_FUNCTION_PTR
 
 private: