api-ref: fix max_version for deprecated os-quota-class-sets parameters
api-ref: fix max_version for deprecated os-quota-class-sets parameters

The max_version on the fixed_ips, floating_ips, networks,
security_groups and security_group_members parameters for the
os-quota-class-sets API should be capped at 2.49, not 2.50.

This is a bit confusing but it works the same as max_version
works in the API code, i.e. the max version is the highest
version you can request that parameter on that API and it
will work. 2.50 was wrong because in 2.50 we don't accept
or return those parameters.

This is similar to the network-related resource deprecation
in the os-quota-sets API with the 2.36 microversion. The API
reference for those parameters in os-quota-sets use
max_version: 2.35.

Change-Id: Ib3e3cdc1ba57172fce1b03a0e77302c3edf9f0dc
Closes-Bug: #1705115

mikalstill/nova,gooddata/openstack-nova,Juniper/nova,mahak/nova,openstack/nova,jianghuaw/nova,openstack/nova,vmturbo/nova,gooddata/openstack-nova,mahak/nova,mikalstill/nova,klmitch/nova,phenoxim/nova,rahulunair/nova,openstack/nova,vmturbo/nova,Juniper/nova,vmturbo/nova,klmitch/nova,gooddata/openstack-nova,mikalstill/nova,rahulunair/nova,gooddata/openstack-nova,rahulunair/nova,Juniper/nova,phenoxim/nova,jianghuaw/nova,klmitch/nova,jianghuaw/nova,Juniper/nova,vmturbo/nova,klmitch/nova,mahak/nova,jianghuaw/nova