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/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h
index 8be7ea9..a520f77 100644
--- a/arch/avr32/include/asm/io.h
+++ b/arch/avr32/include/asm/io.h
@@ -8,7 +8,7 @@
 #include <asm/addrspace.h>
 #include <asm/byteorder.h>
 
-#include <asm/arch/io.h>
+#include <mach/io.h>
 
 /* virt_to_phys will only work when address is in P1 or P2 */
 static __inline__ unsigned long virt_to_phys(volatile void *address)