Make some tests robust to timing issues
Make some tests robust to timing issues

Change-Id: Iac61e3bf6b3176a660c523c4025e090c9ce9c2c4
Signed-off-by: Amit Bose <ff20ef5e867c1c3e42e8554d0ec886fe13a3a6cf@noironetworks.com>

mhrobinson/opflex,opendaylight/opflex,mhrobinson/opflex,opendaylight/opflex,opendaylight/opflex,opendaylight/opflex,mhrobinson/opflex,mhrobinson/opflex