[FS#1428] ramips: mt7620n: NEXX WT3020 switch detection broken

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - João Chainho (joaochainho) 

Attached to Project - OpenWrt/LEDE Project
Summary - ramips: mt7620n: NEXX WT3020 switch detection broken
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - The switch detection on the NEXX WT3020 was broken by commit
https://github.com/openwrt/openwrt/commit/aa5014dd1a58aa8902f2aaf4a02b76998ac2eb2b
and/or
https://github.com/openwrt/openwrt/commit/39b5218434d38715a85b7bd6dd8d279c3e1e905d

No ethernet interface is present, and running **swconfig list** returns nothing.
Everything was fine after reverting these commits.

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1428