test: Adding ethtool support

The ethtool patch did miss adding the relevant stuff into the tests.
detect: Reading CPU flags from lshw instead of /proc

To read the cpu flags, let's read directly the lshw file instead of
/proc.

It's much more cleaner this way.
ansible: More Red Hat dependencies that doen't come as standard (at least with RHEL7) but
are needed to build the various base images
build/deploy.install: glibc-static comes from the optional repos on RHEL7
Merge pull request #147 from tremble/ansible

More Red Hat dependencies that doen't come as standard
ansible: adding qemu-img and patch to the edeploy playbook

They are missing on a minimal RHEL7 install that prevents
bootstrapping with the help of the playbook.