Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE

The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.

Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/EXBITGEN.h b/include/configs/EXBITGEN.h
index 4d08243..880a7a8 100644
--- a/include/configs/EXBITGEN.h
+++ b/include/configs/EXBITGEN.h
@@ -165,7 +165,7 @@
 #define CONFIG_SYS_FLASH1_SIZE		0x02000000
 #define CONFIG_SYS_FLASH_BASE		CONFIG_SYS_FLASH0_BASE
 #define CONFIG_SYS_FLASH_SIZE		CONFIG_SYS_FLASH0_SIZE
-#define CONFIG_SYS_MONITOR_BASE	TEXT_BASE
+#define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE
 #define CONFIG_SYS_MONITOR_LEN		(192 * 1024)	/* Reserve 196 kB for Monitor	*/
 #define CONFIG_SYS_MALLOC_LEN		(128 * 1024)	/* Reserve 128 kB for malloc()	*/