adding missing import for errCode

Change-Id: I5d05cc09c2db3a62814221948e5bc62cadaa89da
Signed-off-by: Shahar Havivi <shaharh@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/36455
Tested-by: Shahar Havivi <shavivi@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>