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/M54455EVB.h b/include/configs/M54455EVB.h
index 5b4bba8..1cdc373 100644
--- a/include/configs/M54455EVB.h
+++ b/include/configs/M54455EVB.h
@@ -305,7 +305,7 @@
 #define CONFIG_SYS_MEMTEST_END		((CONFIG_SYS_SDRAM_SIZE - 3) << 20)
 
 #ifdef CONFIG_CF_SBF
-#	define CONFIG_SYS_MONITOR_BASE	(TEXT_BASE + 0x400)
+#	define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_TEXT_BASE + 0x400)
 #else
 #	define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_FLASH_BASE + 0x400)
 #endif