Without this change, the nodes are configured to use the Fuel node as
their default gateway. Note that the code path is different between MOS
8 and MOS 9 because of this bug fix [1] that hasn't been backported on
MOS 8.
[1] https://bugs.launchpad.net/fuel/+bug/1541309
Change-Id: I80a2fadf8b16b139d07c48a33c52efd33c66935f
Closes-Bug: #1583994