avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>

Update all avr32-specific files to use the new platform-specific header
locations. Drivers shared with ARM are left alone for now.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 992b4be..0bd06f5 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -28,7 +28,7 @@
 #include <asm/io.h>
 #include <asm/unaligned.h>
 
-#include <asm/arch/board.h>
+#include <mach/board.h>
 
 #include "atmel-mci-regs.h"