add translations for the MacAddress constraint

Author: xabbuh

src/Symfony/Component/Validator/Resources/translations/validators.de.xlf

@@ -434,6 +434,10 @@
                 <source>The detected character encoding is invalid ({{ detected }}). Allowed encodings are {{ encodings }}.</source>
                 <target>Der erkannte Zeichensatz ist nicht gültig ({{ detected }}). Gültige Zeichensätze sind {{ encodings }}.</target>
             </trans-unit>
+            <trans-unit id="112">
+                <source>This is not a valid MAC address.</source>
+                <target>Dies ist keine gültige MAC-Adresse.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

src/Symfony/Component/Validator/Resources/translations/validators.en.xlf

@@ -434,6 +434,10 @@
                 <source>The detected character encoding is invalid ({{ detected }}). Allowed encodings are {{ encodings }}.</source>
                 <target>The detected character encoding is invalid ({{ detected }}). Allowed encodings are {{ encodings }}.</target>
             </trans-unit>
+            <trans-unit id="112">
+                <source>This is not a valid MAC address.</source>
+                <target>This is not a valid MAC address.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>