autotest/autotest — pull request #500 by ypu (2012-08-08 12:31:12+00:00)
Title: Virt: Add one method in get_node_cpus to check cpus for Numa node

In some old version of numactl(0.9.8), the output of the command
"numactl --hardware" will not include the cpus info. So add one
method to get cpus from sysfs when the numactl failed to get it.

Signed-off-by: Yiqiao Pu