ansible: netplan: fixed host netif by mac address

ansible: netplan: fixed host netif by mac address

Since we track the bookworm-backports kernel on the CI amd64 hosts, the
name of the network interfaces may change after a kernel update. Change
the netplan config to bind the interface based on its mac address which
doesn't change.

Change-Id: I7c2a040964f22187fb6a76e1ec3cd1b6e05a2679
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>