Add support for ASUS P5A (Socket 7, ALi based)

* Add support for the ALi M1533 to chipset_enable.c
* Add some SMBus poking needed for the ASUS P5A, to board_enable.c

Since PCI subsystem IDs are worthless with this board, people will
have to name the board directly.

Corresponding to flashrom svn r109 and coreboot v2 svn r2677.

Signed-off-by: Luc Verhaegen <libv@skynet.be>
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/README b/README
index cec6de8..37b91d0 100644
--- a/README
+++ b/README
@@ -51,7 +51,8 @@
 no LinuxBIOS table is found:
 
 * IWILL DK8-HTX: use -m iwill:dk8_htx
-* agami Aruma: use -m AGAMI:ARUMA
+* Agami Aruma: use -m AGAMI:ARUMA
+* ASUS P5A: use -m asus:p5a
 
 
 ROM Layout Support