[ARM] 3972/1: AT91: Update board.h

Replace the 'is_b' variable with 'slot_b' in at91_mmc_data.
Also add the new 'chipselect' variable for CF/PCMCIA and 'bus_width_16'
variable for NAND.

This (and previous patches) will unfortunately break the current MMC,
USB Gadget and PCMCIA drivers.  Updates and fixes for those drivers will
be submitted to the various subsystem maintainers.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91rm9200/board-ek.c b/arch/arm/mach-at91rm9200/board-ek.c
index 9fcfa06..c4fdb41 100644
--- a/arch/arm/mach-at91rm9200/board-ek.c
+++ b/arch/arm/mach-at91rm9200/board-ek.c
@@ -89,7 +89,7 @@
 
 static struct at91_mmc_data __initdata ek_mmc_data = {
 	.det_pin	= AT91_PIN_PB27,
-	.is_b		= 0,
+	.slot_b		= 0,
 	.wire4		= 1,
 	.wp_pin		= AT91_PIN_PA17,
 };