Finish linux:system:user:sudo parametrization

Change-Id: Idf650767d379603853d5f4691c13cf37f2b7645f
diff --git a/openssh/server/team/members/michaelpetersen.yml b/openssh/server/team/members/michaelpetersen.yml
index bab536f..4ac6ee6 100644
--- a/openssh/server/team/members/michaelpetersen.yml
+++ b/openssh/server/team/members/michaelpetersen.yml
@@ -5,7 +5,7 @@
         mpetersen:
           enabled: true
           name: mpetersen
-          sudo: false
+          sudo: ${_param:linux_system_user_sudo}
           full_name: Michael Petersen
           home: /home/mpetersen
           email: mpetersen@mirantis.com