[media] V4L1 API has been moved into "legacy" on the linuxtv.org site

Signed-off-by: NBjørn Mork <bjorn@mork.no>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Documentation/video4linux/API.html

@@ -9,7 +9,7 @@
   <table border="0">
    <tr>
     <td>
-     <a href="http://www.linuxtv.org/downloads/video4linux/API/V4L1_API.html">V4L original API</a>
+     <a href="http://linuxtv.org/downloads/legacy/video4linux/API/V4L1_API.html">V4L original API</a>
     </td>
     <td>
      Obsoleted by V4L2 API