Each driver should report the resource class and traits to Cyborg agent in
order to let agent pass them to conductor, then conductor could call placment
to update them.
In FPGA case, driver should discover RC as "CUSTOM_ACCELERATOR_FPGA" and also
discover the function id, region type if exist, as TRAITS.
The placement report work depends on this patch.
We should also improve the OPEA in the future.
Change-Id: I4a679a7b93de62dbca25e293f7c2e7e71ffad2a5