ramips: ethernet: fix to interrupt handling

[Jaap Buurman]

Dear all,

Is there a reason the "ramips: ethernet: fix to interrupt handling"
patch never was included in the master branch or 19.07 branch?:

https://patchwork.ozlabs.org/project/openwrt/patch/20191029172328.85861-2-rosenp@gmail.com/

There are many interrupt errors on my mt7621 device, and there have
been reports that this patch brings those errors massively down or
even eliminates them all together.

Yours sincerely,

Jaap