COMPMID-995 Add CL_DEVICE_VERSION to the test framework output

Change-Id: Ic32742388fbd45c8acc395977586204980eff591
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/123541
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Kevin Petit <kevin.petit@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
diff --git a/arm_compute/core/CL/CLKernelLibrary.h b/arm_compute/core/CL/CLKernelLibrary.h
index 20e245e..953b43c 100644
--- a/arm_compute/core/CL/CLKernelLibrary.h
+++ b/arm_compute/core/CL/CLKernelLibrary.h
@@ -261,6 +261,12 @@
     {
         _device = std::move(device);
     }
+
+    /** Return the device version
+     *
+     * @return The content of CL_DEVICE_VERSION
+     */
+    std::string get_device_version();
     /** Creates a kernel from the kernel library.
      *
      * @param[in] kernel_name       Kernel name.