Ability for managing network interfaces was intentionally disabled for Turris 1.x devices, until support for Turris 1.x will be implemented in turrishw.
Unfortunately, even though turrishw supports Turris 1.x devices for quite some time, update of interfaces assignment was still disabled in foris-controller.
This commit removes that artificial limitation and it is now possible to assign interfaces to WAN, LAN and Guest network even on Turris 1.x.
Closes: #236 (closed)
Blocked by: turris/turrishw!14 (merged), foris-controller-testtools!13 (merged)