ath79-generic: Fix autoupdater for Loco M XW from v2021.1.x to v2022.1.x (#2667)

Ubiquiti Nanostation Loco M XW was renamed in v2022.1.x, but the alias to the old name was missing, so devices running the old release did not update.

(cherry picked from commit dc8055682ee228f1044f36d9e6248cfa9525f36f)

Co-authored-by: goligo <ich@malte.de>