Add NODE and HOST parameters in "server create" help text
Add NODE and HOST parameters in "server create" help text

Add optional parameters "NODE" and "HOST" in the help text of the
server create comand for --availability-zone.

Co-Authored-By: tianhui <3c43dae45ace04d21e79d301d02d5375f92ca9dc@awcloud.com>
Change-Id: I4faea8a3d3aecb21ec535e55c238c71745fc68cb
Task: 24274
Story: 2003313

openstack/python-openstackclient,openstack/python-openstackclient