sysdeps: Correct spelling in <unix/sysv/linux/net/ethernet.h>

[Jonny Grant]

Hello

Please find attached patch created against latest git.

Regards, Jonny
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-Correct-ethenet-spelling.patch
Type: text/x-patch
Size: 1320 bytes
Desc: not available
URL: <https://sourceware.org/pipermail/libc-alpha/attachments/20201028/fe6b6507/attachment.bin>