[FS#1145] ar71xx/mikrotik: sysupgrade on rb-nor devices broken after 4k sectors re-enabled

[LEDE Bugs]

The following task is now closed:

FS#1145 - ar71xx/mikrotik: sysupgrade on rb-nor  devices broken after 4k sectors re-enabled
User who did this - Mathias Kresin (mkresin)

Reason for closing: Fixed
Additional comments about closing: Fixed with https://git.lede-project.org/c078386ae3db328a3e659508fddc74c1f099b221

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1145