linux/mii.h: Sync with Linux kernel v4.17

This syncs U-Boot's include/linux/mii.h with Linux kernel v4.17
include/uapi/linux/mii.h.

While we are here, this also fixes some style issues.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
1 file changed