autotest/virt-test — pull request #1695 by will-Do (2014-06-10 11:48:03+00:00)
Title: Iscsidev.setup: Set selinux to permissive mode before login

If selinux is enforcing, when adding a logicalunit to a target during
iscsi target epxport, you will get the error: 'tgtadm: invalid request'.
So compromise selinux mode to avoid this problem.

Signed-off-by: Yanbing Du