Make processResidency mock virtual

Change-Id: Ide2cc1428cf8fcd21e8d1fe2de5c91a6fa766fa1
Signed-off-by: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>

Author: Jaime Arteaga

opencl/source/os_interface/linux/drm_command_stream.h

@@ -38,7 +38,7 @@ class DrmCommandStreamReceiver : public DeviceCommandStreamReceiver<GfxFamily> {
                              gemCloseWorkerMode mode = gemCloseWorkerMode::gemCloseWorkerActive);
 
     bool flush(BatchBuffer &batchBuffer, ResidencyContainer &allocationsForResidency) override;
-    void processResidency(const ResidencyContainer &allocationsForResidency, uint32_t handleId) override;
+    MOCKABLE_VIRTUAL void processResidency(const ResidencyContainer &allocationsForResidency, uint32_t handleId) override;
     void makeNonResident(GraphicsAllocation &gfxAllocation) override;
     bool waitForFlushStamp(FlushStamp &flushStampToWait) override;