Resync nodepool.yaml with system-config version.
Resync nodepool.yaml with system-config version.

This change updates the project-config version of nodepool.yaml
to include the recent change merged in system-config
"Add Fedora 22 images to the tripleo cloud"
Ide20099eb181382b792112cbfb06ef20aa358f9c

Change-Id: I6b01ab7260a41927fff34b9b81b631ea2c933f22

Tesora/tesora-project-config,openstack-infra/project-config,Tesora/tesora-project-config,noorul/os-project-config,dongwenjuan/project-config,noorul/os-project-config,dongwenjuan/project-config,openstack-infra/project-config