at91rm9200: fix broken boot from nor flash

This patch fix the broken boot from NOR Flash on AT91RM9200 boards, if
CONFIG_AT91RM9200 is defined and nor preloader is used.

Signed-off-by: Jens Scharsig <esw@bus-elektronik.de>
diff --git a/include/configs/csb637.h b/include/configs/csb637.h
index 38fd25c..682db44 100644
--- a/include/configs/csb637.h
+++ b/include/configs/csb637.h
@@ -72,6 +72,8 @@
 #define SDRC_MR_VAL2	0x00000003 /* Load Mode Register */
 #define SDRC_MR_VAL3	0x00000000 /* Normal Mode */
 #define SDRC_TR_VAL	0x000002E0 /* Write refresh rate */
+#else
+#define CONFIG_SKIP_RELOCATE_UBOOT
 #endif	/* CONFIG_SKIP_LOWLEVEL_INIT */
 /*
  * Size of malloc() pool