arm: at91 move board.h to arch/arm/mach-at91

as this is only used board old style board

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/arch/arm/mach-at91/board-yl-9200.c b/arch/arm/mach-at91/board-yl-9200.c
index f162fdf..5d3a40f 100644
--- a/arch/arm/mach-at91/board-yl-9200.c
+++ b/arch/arm/mach-at91/board-yl-9200.c
@@ -43,12 +43,12 @@
 #include <asm/mach/irq.h>
 
 #include <mach/hardware.h>
-#include <mach/board.h>
 #include <mach/at91_aic.h>
 #include <mach/at91rm9200_mc.h>
 #include <mach/at91_ramc.h>
 #include <mach/cpu.h>
 
+#include "board.h"
 #include "generic.h"