V4L/DVB: cx18, cx23885, v4l2 doc, MAINTAINERS: Update Andy Walls' email address

A trivial change to update my email address from my dead awalls@radix.net
address to my current awalls@md.metrocast.net address.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx23885/cx23888-ir.c b/drivers/media/video/cx23885/cx23888-ir.c
index ad728d7..f63d378 100644
--- a/drivers/media/video/cx23885/cx23888-ir.c
+++ b/drivers/media/video/cx23885/cx23888-ir.c
@@ -3,7 +3,7 @@
  *
  *  CX23888 Integrated Consumer Infrared Controller
  *
- *  Copyright (C) 2009  Andy Walls <awalls@radix.net>
+ *  Copyright (C) 2009  Andy Walls <awalls@md.metrocast.net>
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License