git: 5d66edf463a0 - stable/12 - ether: add older ethertype definitions for QinQ

[Lutz Donnerhacke]

On Thu, Feb 25, 2021 at 07:53:01AM +0000, Lutz Donnerhacke wrote:
> The branch stable/12 has been updated by donner:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=5d66edf463a053a840a08322107363cf79249f6f
> 
> commit 5d66edf463a053a840a08322107363cf79249f6f
> Author:     Philip Paeps <philip at FreeBSD.org>
> AuthorDate: 2019-10-17 00:34:53 +0000
> Commit:     Lutz Donnerhacke <donner at FreeBSD.org>
> CommitDate: 2021-02-25 07:51:39 +0000
> 
>     ether: add older ethertype definitions for QinQ
>     
>     Older network equipment used the ethertypes 0x9100, 0x9200, and 0x9300 for
>     outer VLANs, before standardisation introduced 0x88a8.
>     
>     Submitted by:    Lutz Donnerhacke <lutz_donnerhacke.de>
>     Differential Revision:  https://reviews.freebsd.org/D21846
>     
>     (cherry picked from commit 579b70db8922b1debf3bd99bb2b822d60b95575d)

That's a prerequisite for the next commit. So I commited it in a bundle with
the MFCed one.