virttest.utils_libvirtd: service_libvirtd_control -> Fix old params

In the latest rework of utils_libvirtd, the author forgot
to add the original params of the service_libvirtd_control API,
making code in utils_conn to fail. Let's restore all the relevant
params and make things right again.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
virttest.qemu_storage: PEP8 Fix
virttest.qemu_vm: PEP8 Fix
Merge pull request #1582 from autotest/fix-utils-libvirtd2

Fix utils libvirtd2