Asym PFC configuration fix

[nazariig]

Signed-off-by: Nazarii Hnydyn nazariig@mellanox.com

- What I did

• Fixed Asym PFC configuration

- How I did it

• Added missing argument

- How to verify it

1. root@sonic:/home/admin# config interface pfc asymmetric Ethernet0 off
2. root@sonic:/home/admin# config interface pfc asymmetric Ethernet0 on

- Previous command output (if the output of a command-line utility has changed)

root@sonic:/home/admin# config interface Ethernet0 pfc asymmetric off
Usage: config interface [OPTIONS] COMMAND [ARGS]...

Error: No such command "Ethernet0".

root@sonic:/home/admin# config interface pfc asymmetric Ethernet0 off
Usage: config interface pfc asymmetric [OPTIONS] STATUS

Error: Invalid value for "status": invalid choice: Ethernet0. (choose from on, off)

root@sonic:/home/admin# config interface pfc asymmetric off Ethernet0
Usage: config interface pfc asymmetric [OPTIONS] STATUS

Error: Got unexpected extra argument (Ethernet0)

- New command output (if the output of a command-line utility has changed)

root@sonic:/home/admin# config interface pfc asymmetric Ethernet0 off

[nazariig]

@jleveque please have a look.

[nazariig]

@lguohan please have a look.