Adapt synced puppet-nova for Fuel usage

Disable neutron metadata releated options
in nova::api until neutron module got synced
and fixed

Partial blueprint merge-openstack-puppet-modules

Change-Id: I14cba6fa3c378fb83ce0738c4b20acb94bcf7026
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>