Fixes; #2868 freeradius plugin have erroneous default value for Tunnel medium type

freeradius/admin/freeradius/class_freeradiusGroup.inc

@@ -64,7 +64,7 @@ class freeradiusGroup extends simplePlugin {
             _('Name of the tunnel medium type'),  // Description
             'radiusTunnelMediumType',             // LDAP name
             TRUE,                                 // Mandatory
-            'IEEE 802'                            // default value
+            'IEEE-802'                            // default value
           ),
             new StringAttribute(
             _('Tunnel type'),               // Label of the attribute

freeradius/personal/freeradius/class_freeradiusAccount.inc

@@ -68,7 +68,7 @@ class freeradiusAccount extends simplePlugin {
           new StringAttribute(
             _('Tunnel medium type'), _('Name of the tunnel medium type'),
             'radiusTunnelMediumType', TRUE,
-            'IEEE 802'
+            'IEEE-802'
           ),
             new StringAttribute(
             _('Tunnel type'), _('Name of the tunnel type'),