Add debug flag to loop at initialize.

- This is to help debugging applications that requires attaching to them.

Change-Id: Ia7923c231b925ab9a473a70fb5fcc13fd99db1ca

runtime/platform/platform.h

@@ -78,7 +78,7 @@ class Platform : public BaseObject<_cl_platform_id> {
     };
     cl_uint state = StateNone;
     void fillGlobalDispatchTable();
-
+    MOCKABLE_VIRTUAL void initializationLoopHelper(){};
     std::unique_ptr<PlatformInfo> platformInfo;
     DeviceVector devices;
     std::string compilerExtensions;