[dts] [PATCH V1]test_plans/cvl_ecpri: update negative eCPRI port config cmd

[Tu, Lijuan]

> the ecpri port config can support udp port form 0 to 0xffff, so delete related
> cmds in negative case.
> 
> Signed-off-by: qifu <qi.fu at intel.com>

Applied