rt2x00: Update copyright statements.

As mentioned on the linux-wireless mailing list, the current copyright
statements in the rt2x00 are meaningless, as the rt2x00 project is
not even a formal legal entity. Therefore it is better to replace
the existing copyright statements with copyright statements for the
people that actually wrote the code.

Note: Updated to the best of my knowledge with respect to who
contributed considerable amounts of code.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.h b/drivers/net/wireless/rt2x00/rt2800usb.h
index 8f31744..1e4340a 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.h
+++ b/drivers/net/wireless/rt2x00/rt2800usb.h
@@ -1,5 +1,9 @@
 /*
-	Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
+	Copyright (C) 2009 Ivo van Doorn <IvDoorn@gmail.com>
+	Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
+	Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
+	Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
+	Copyright (C) 2009 Axel Kollhofer <rain_maker@root-forum.org>
 	<http://rt2x00.serialmonkey.com>
 
 	This program is free software; you can redistribute it and/or modify