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/stxgp3.h b/include/configs/stxgp3.h
index 891d2bf..abc48b3 100644
--- a/include/configs/stxgp3.h
+++ b/include/configs/stxgp3.h
@@ -97,7 +97,7 @@
 #define CONFIG_SYS_OR1_PRELIM		0xffff0ff7      /* 64K is enough */
 #define CONFIG_SYS_LBC_LCLDEVS_BASE	0xfc000000	/* Base of localbus devices */
 
-#define CONFIG_SYS_MONITOR_BASE	TEXT_BASE	/* start of monitor	*/
+#define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE	/* start of monitor	*/
 
 #if (CONFIG_SYS_MONITOR_BASE < CONFIG_SYS_FLASH_BASE)
 #define CONFIG_SYS_RAMBOOT