Fix lsb installation for SUSE
Fix lsb installation for SUSE

zypper has a "-n" (non-interactive) switch. "-y" is not known
as a global option.

Change-Id: I6537529e91c12c5f0d15a9faa2cca8aedaf7d956

richliu/devstack,samgoon/devstack,openstack-dev/devstack,nawawi/openstack,group-policy/devstack,bswartz/devstack,group-policy/devstack,bswartz/devstack,bigswitch/devstack,Mahito/devstack,noironetworks/devstack,bigswitch/devstack,openstack-dev/devstack,nawawi/openstack,Mahito/devstack,samgoon/devstack,dtroyer/devstack,noironetworks/devstack,richliu/devstack,dtroyer/devstack