libvirt_configure.sh: fix commit cff03f968e

This patch fixes two blatant errors, redering ssl=False unworkable.

Change-Id: Ic4cab6f3346f9b1ad492d40ea3d3c645484570da
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/24492
Reviewed-by: Federico Simoncelli <fsimonce@redhat.com>