[dts] [PATCH] linux kernel modules: add tests

[Tu, Lijuan]

> add vfio-pci test suite
> add igb_uio test suite
> add uio_pci_generic test suite
> add test suite documentation
> add new setting UNPRIVILEGED_USERNAME
> add check for file existence when getting dpdk pids
>         dpdk processes run in memory will not create the expected files add return
> to DPDKdut.bind_interfaces_linux to allow for error checking
> 
> Signed-off-by: Owen Hilyard <ohilyard at iol.unh.edu>

Applied, thanks