Fix "Needs to specify pyzmq version"
Fix "Needs to specify pyzmq version"

"pyzmq13.0.0" described as "pyzmq>=2.1.11"
causes unit test error. Specifying correct
version is necessary.

Change-Id: Icb7acb0eb4d59a456999ba477e087d825be8dd4b

JioCloud/oslo-incubator,JioCloud/oslo-incubator,JioCloud/oslo-incubator