spec: require python-ethtool >= 0.7
spec: require python-ethtool >= 0.7

with python-ethtool 0.6 hosted-engine segfaults.

Change-Id: Ia90afcd0de88a37664b0ba4965f34cb700476918
Signed-off-by: Sandro Bonazzola <fcb014d63786651910af5db2ecc5316c668188ef@redhat.com>

oVirt/ovirt-hosted-engine-setup,oVirt/ovirt-hosted-engine-setup