Add fix for no-hbac-allow option in server install

This PR brings uniformity in option provided by no-hbac-allow
and other options present in IPA server install script

Fixes https://fedorahosted.org/freeipa/ticket/6357

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
Reviewed-By: Tomas Krizek <tkrizek@redhat.com>

ipaserver/install/server/install.py

@@ -1288,7 +1288,8 @@ class Server(BaseServer):
     no_hbac_allow = Knob(
         bool, False,
         description="Don't install allow_all HBAC rule",
-        cli_name='no_hbac_allow',
+        cli_name='no-hbac-allow',
+        cli_aliases=['no_hbac_allow'],
     )
 
     ignore_topology_disconnect = Knob(