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/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index b159607..ddc3285 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -26,7 +26,6 @@
 #include <video/atmel_lcdc.h>
 
 #include <mach/at91_adc.h>
-#include <mach/board.h>
 #include <mach/at91sam9g45.h>
 #include <mach/at91sam9g45_matrix.h>
 #include <mach/at91_matrix.h>
@@ -36,6 +35,7 @@
 
 #include <media/atmel-isi.h>
 
+#include "board.h"
 #include "generic.h"
 #include "clock.h"