Since [1], pyroute2 0.5.13 is supported.
In this new version, "link_lookup" do not raise a NetlinkError
exception if the device does not exist; instead returns an empty
list.
This patch handles both implementations.
[1]https://review.opendev.org/#/c/743277/
Change-Id: I77ef374ecb776966ea13499755777e2d763d884b
Closes-Bug: #1890353