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/pdm360ng.h b/include/configs/pdm360ng.h
index f073fcd..ba7f9ca 100644
--- a/include/configs/pdm360ng.h
+++ b/include/configs/pdm360ng.h
@@ -271,7 +271,7 @@
 #define CONFIG_FDT_FIXUP_PARTITIONS
 #endif
 
-#define CONFIG_SYS_MONITOR_BASE		TEXT_BASE	/* Start of monitor */
+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE	/* Start of monitor */
 #define CONFIG_SYS_MONITOR_LEN		(512 * 1024)	/* 512 kB for monitor */
 #ifdef	CONFIG_FSL_DIU_FB
 #define CONFIG_SYS_MALLOC_LEN		(6 * 1024 * 1024) /* for malloc */