MAINTAINERS: update Corey Thomas email address

On Sat, 2007-12-22 at 18:08 -0500, Corey Thomas wrote:
> This email, coreythomas@charter.net is good.  ISP change.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

MAINTAINERS

@@ -3195,7 +3195,7 @@ S:	Maintained
 
 RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER
 P:	Corey Thomas
-M:	corey@world.std.com
+M:	coreythomas@charter.net
 L:	linux-wireless@vger.kernel.org
 S:	Maintained