Update XEP-0356 Privileged Entity to 0.4.1 (processone/ejabberd#3889)

specs/xmpp_codec.spec

@@ -4306,31 +4306,55 @@
 			  dec = {dec_int, [0, infinity]},
 			  enc = {enc_int, []}}]}).
 
+-xml(privilege_namespace,
+     #elem{name = <<"namespace">>,
+	   xmlns = <<"urn:xmpp:privilege:2">>,
+	   module = 'xep0356',
+	   result = {privilege_namespace, '$ns', '$type'},
+	   attrs = [#attr{name = <<"ns">>,
+			  required = true},
+		    #attr{name = <<"type">>,
+			  required = true,
+			  dec = {dec_enum, [[none, get, set, both]]},
+			  enc = {enc_enum, []}}]}).
+
 -xml(privilege_perm,
      #elem{name = <<"perm">>,
-	   xmlns = <<"urn:xmpp:privilege:1">>,
+	   xmlns = <<"urn:xmpp:privilege:2">>,
 	   module = 'xep0356',
-	   result = {privilege_perm, '$access', '$type'},
+	   result = {privilege_perm, '$access', '$type', '$push', '$namespaces'},
 	   attrs = [#attr{name = <<"access">>,
 			  required = true,
-			  dec = {dec_enum, [[roster, message, presence]]},
+			  dec = {dec_enum, [[iq, roster, message, presence]]},
 			  enc = {enc_enum, []}},
 		    #attr{name = <<"type">>,
-			  required = true,
 			  dec = {dec_enum, [[none, get, set, both,
 					     outgoing, roster,
 					     managed_entity]]},
-			  enc = {enc_enum, []}}]}).
+			  enc = {enc_enum, []}},
+		    #attr{name = <<"push">>,
+			  default = true,
+                          dec = {dec_bool, []},
+			  enc = {enc_bool, []}}],
+	   refs = [#ref{name = privilege_namespace, label = '$namespaces'}]}).
 
 -xml(privilege,
      #elem{name = <<"privilege">>,
-	   xmlns = <<"urn:xmpp:privilege:1">>,
+	   xmlns = <<"urn:xmpp:privilege:2">>,
 	   module = 'xep0356',
 	   result = {privilege, '$perms', '$forwarded'},
 	   refs = [#ref{name = privilege_perm, label = '$perms'},
 		   #ref{name = forwarded, min = 0,
                         max = 1, label = '$forwarded'}]}).
 
+-xml(privileged_iq,
+     #elem{name = <<"privileged_iq">>,
+	   xmlns = <<"urn:xmpp:privilege:2">>,
+	   module = 'xep0356',
+	   result = {privileged_iq, '$iq'},
+	   refs = [#ref{name = iq, min = 0,
+                        max = 1, label = '$iq'}]}).
+
 -xml(delegated_attribute,
      #elem{name = <<"attribute">>,
 	   xmlns = <<"urn:xmpp:delegation:1">>,