api-ref: Add "nocatalog" option to GET /v3/auth/tokens
api-ref: Add "nocatalog" option to GET /v3/auth/tokens

Added missing "nocatalog" query parameter for GET /v3/auth/tokens API
to api-ref.  See [1].

[1] http://specs.openstack.org/openstack/keystone-specs/api/v3/identity-api-v3.html#validate-token

Change-Id: Ie2310b7dfaf8d6a05b6a61ac6f9639d181798930
Closes-Bug: #1609177

ilay09/keystone,openstack/keystone,rajalokan/keystone,mahak/keystone,rajalokan/keystone,ilay09/keystone,rajalokan/keystone,mahak/keystone,ilay09/keystone,openstack/keystone,openstack/keystone,mahak/keystone