sshd_config.j2: add more variables.

roles/common/templates/etc/ssh/sshd_config.j2

@@ -54,17 +54,17 @@ HostKey {{ item }}
 # The default is 10.
 #MaxStartups 10:30:100
 #MaxStartups 3
-MaxStartups 10:30:100
+MaxStartups {{ sshd_max_startups }}
 
 # Specifies the maximum number of authentication attempts permitted per
 # connection.
 # The default is 6.
-MaxAuthTries 3
+MaxAuthTries {{ sshd_max_auth_tries }}
 
 # Specifies the maximum number of open sessions permitted per network
 # connection.
 # The default is 10.
-MaxSessions 10
+MaxSessions {{ sshd_max_sessions }}
 
 
 #-----------------------------