[FS#380] sysupgrade corrupts firmware on ASUS RT-N16

[LEDE Bugs]

The following task has a new comment added:

FS#380 - sysupgrade corrupts firmware on ASUS RT-N16
User who did this - Mathias Kresin (mkresin)

----------
I'm not familiar with BCM47xx. No idea what kind of magic is used for this target.
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=380#comment1256