prepare joining at91rm9200 into at91

* prepare joining at91 and at91rm9200
 * add modified copy of soc files to cpu/arm920t/at91 to make
   possible to compile at91rm9200 boards in at91 tree instead
   of at91rm9200
 * add header files with c structure defs for AT91 MC, ST and TC
 * the new cpu files are using at91 c structure soc access
 * please read README.soc-at91 for details

Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h
index de06a10..4ddb315 100644
--- a/include/asm-arm/arch-at91/hardware.h
+++ b/include/asm-arm/arch-at91/hardware.h
@@ -17,7 +17,7 @@
 #include <asm/sizes.h>
 
 #if defined(CONFIG_AT91RM9200)
-#include <asm/arch/at91rm9200.h>
+#include <asm/arch-at91/at91rm9200.h>
 #elif defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20)
 #include <asm/arch/at91sam9260.h>
 #define AT91_BASE_SPI	AT91SAM9260_BASE_SPI0