netlink: add netlink handler for schannels (-L)

Implement "ethtool -L <dev> ..." subcommand to set network device channel
counts using ETHTOOL_MSG_CHANNELS_SET netlink message. These are
traditionally set using ETHTOOL_SCHANNELS ioctl request.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
3 files changed