Add gear to requirements
Add gear to requirements

nodepool is pretty unhappy without it.

Change-Id: I7a5e58f3b4c75ce4f83b7eb6f0a3a0724fd0abb7

citrix-openstack/nodepool,citrix-openstack/nodepool,Tesora/tesora-nodepool,seandst/nodepool,Tesora/tesora-nodepool,seandst/nodepool