[dts] [PATCH V1] tests/shutdown_api: modify the command to adapt to the changes in ethtool

[Tu, Lijuan]

> -----Original Message-----
> From: Song Jiale <songx.jiale at intel.com>
> Sent: Monday, January 16, 2023 11:00 PM
> To: dts at dpdk.org
> Cc: Jiale, SongX <songx.jiale at intel.com>
> Subject: [dts] [PATCH V1] tests/shutdown_api: modify the command to adapt to
> the changes in ethtool
> 
> The ethtool after version 5.4 does not support changing the network card speed
> when automatic negotiation is turned off. therefore, rm 'autoneg off' in script.

Compatibility is very important.