[ofw] [Patch][Core] Fix at IRP cancellation mechanism

[Hefty, Sean]

> I must say that for the long term we need to split the joint code.

In the future, if someone is already modifying some portion of shared code, it would help if they:

- copied the module into the kernel and user directories
- updated the sources files accordingly
- removed the shared module
- make necessary changes to the correct module only