[POWERPC] booting-without-of: localbus should not include board name

Fix documentation once and for ever, because I'm pretty tired of
repeating that I am merely following it. ;-)

http://ozlabs.org/pipermail/linuxppc-dev/2007-December/048096.html

http://ozlabs.org/pipermail/linuxppc-dev/2007-November/046977.html
http://ozlabs.org/pipermail/linuxppc-dev/2007-November/046979.html

http://ozlabs.org/pipermail/linuxppc-dev/2007-October/044411.html
http://ozlabs.org/pipermail/linuxppc-dev/2007-October/044413.html

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Documentation/powerpc/booting-without-of.txt

@@ -2091,8 +2091,7 @@ platforms are moved over to use the flattened-device-tree model.
 
    Example:
 	localbus@f0010100 {
-		compatible = "fsl,mpc8272ads-localbus",
-		             "fsl,mpc8272-localbus",
+		compatible = "fsl,mpc8272-localbus",
 		             "fsl,pq2-localbus";
 		#address-cells = <2>;
 		#size-cells = <1>;