virt-libvirt: Fix typo in virsh schedinfo(qemu) test

os.path.join("/cgroup/cpu", "/libvirt/qemu", "vm1") will
return "/libvirt/qemu/vm1", not "/cgroup/cpu/libvirt/qemu/vm1",
so I modify 'libvirt_cgroup_path' default value from
"/libvirt/qemu" to "libvirt/qemu"

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
virsh_uri: Change TestError to TestNAError

Following lead of similar tests that use the EXAMPLE.COM
checking, use TestNAError rather than TestError to result
in SKIP instead of ERROR for test

Signed-off-by: John Ferlan <jferlan@redhat.com>
virt.tests: fix typo in unattended_install test

Signed-off-by: Xu Tian <xutian@redhat.com>
Merge pull request #956 from liyangfnst/schedinfo

virt-libvirt: Fix typo in virsh schedinfo(qemu) test
libvirt-svirt: Add test for VM starting and destroying in svirt.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
libvirt-svirt:Add test for save and restore in svirt

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
libvirt_vm: fix save_to_file and restore_from_file method.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
virttest.libvirt_xml: Fix wrong comment of vm_xml.set_cpu_mode.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>
virttest.libvirt_xml: Add get_first_mac_by_name method for VMXML class.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>
virttest.utils_libguestfs: Add functions for libguestfs tools.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>
libguestfs.testcases: Add test for guestfish disk operations.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>