[dts] [PATCH V1] tests/vf_kernel : fix alt_session as false issue in vf kernel some cases

[Liu, Yong]

Meijuan,
Look like this patch contained of two patches. I have modified your 
commit log and merged.
BTW, please restrict your commit log in 72 characters/per line later.

Thanks,
Marvin

On 01/16/2018 03:39 PM, zhao,meijuan wrote:
> in test_zdpf_2kvf_2dvf_2vm,test_dpf_kvf_dvf,testpmd session and host session are in a session because of alt_session is false if host cmd is executed after testpmd start
>
> Signed-off-by: zhao,meijuan<meijuanx.zhao at intel.com>