[dts] [PATCH V2] tests/dcf_lifecycle:recovery ENV for other cases run

[Tu, Lijuan]

> Subject: [dts] [PATCH V2] tests/dcf_lifecycle:recovery ENV for other cases run
> 
> 1. If vf is created, set a vf as trust will fail, so destroy it before set trust.
> 2. Need recovery the ENV for other cases after case test_dcf_with_l2fwd_03
> and test_dcf_with_l2fwd_02 run.
> 
> Signed-off-by: Jianwei Mei <jianweix.mei at intel.com>
> ---
>  tests/TestSuite_dcf_lifecycle.py | 8 ++++++++

Applied, thanks