config/types: override coreos-metadata provider on openstack-metadata
config/types: override coreos-metadata provider on openstack-metadata

The provider as specified by the kernel command line to coreos-metadata
must be overridden when using the openstack-metadata provider, as the
container linux image merely specifies "openstack" due to it not knowing
which metadata strategy will be used.

coreos/fuze,coreos/fuze,dgonyeo/fuze,dgonyeo/fuze