ethtool.spec: Add bash completion script

After the additon of the bash completion script, packaging
using the default spec file fails for installed but not packaged
error. so package it.

Fixes: 9b802643d7bd ("ethtool: Add bash-completion script")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
1 file changed