Change audio hardware configuration from webservice.

html/hconfig.php

@@ -52,7 +52,7 @@ if ( $hqa_v == 2 ) {
 }
 echo '">';
 ?>
-  <button type="submit" name="submit">Save audio device config</button>
+  <button type="submit" name="submit">Save audio device config and reboot</button>
 </pre></b>
 </form>
 <hr>
@@ -94,4 +94,4 @@ Update to last build from github
 <a href="changeconf.php?file=restart"><button>PiRadio restart</button></a>
 <a href="changeconf.php?file=reboot"><button>System reboot</button></a>
 </body>
-</html>
+</html>