igep00x0: generate default mtdparts according NAND chip used

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
diff --git a/include/configs/omap3_igep00x0.h b/include/configs/omap3_igep00x0.h
index 03ffda9..e0d2593 100644
--- a/include/configs/omap3_igep00x0.h
+++ b/include/configs/omap3_igep00x0.h
@@ -113,6 +113,7 @@
 
 #define CONFIG_RBTREE
 #define CONFIG_MTD_PARTITIONS
+#define CONFIG_SYS_MTDPARTS_RUNTIME
 
 /* OneNAND config */
 #define CONFIG_SPL_ONENAND_SUPPORT