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/nand_spl/board/amcc/kilauea/Makefile b/nand_spl/board/amcc/kilauea/Makefile
index a49ba07..78c67a2 100644
--- a/nand_spl/board/amcc/kilauea/Makefile
+++ b/nand_spl/board/amcc/kilauea/Makefile
@@ -25,7 +25,7 @@
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
-LDFLAGS	= -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+LDFLAGS	= -Bstatic -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(PLATFORM_LDFLAGS)
 AFLAGS	+= -DCONFIG_NAND_SPL
 CFLAGS	+= -DCONFIG_NAND_SPL
 
diff --git a/nand_spl/board/amcc/kilauea/config.mk b/nand_spl/board/amcc/kilauea/config.mk
index f6bcd21..6240277 100644
--- a/nand_spl/board/amcc/kilauea/config.mk
+++ b/nand_spl/board/amcc/kilauea/config.mk
@@ -25,18 +25,18 @@
 #
 
 #
-# TEXT_BASE for SPL:
+# CONFIG_SYS_TEXT_BASE for SPL:
 #
 # On 4xx platforms the SPL is located at 0xfffff000...0xffffffff,
 # in the last 4kBytes of memory space in cache.
 # We will copy this SPL into SDRAM since we can't access the NAND
 # controller at CS0 while running from this location. So we set
-# TEXT_BASE to starting address in SDRAM here.
+# CONFIG_SYS_TEXT_BASE to starting address in SDRAM here.
 #
-TEXT_BASE = 0x00800000
+CONFIG_SYS_TEXT_BASE = 0x00800000
 
 # PAD_TO used to generate a 16kByte binary needed for the combined image
-# -> PAD_TO = TEXT_BASE + 0x4000
+# -> PAD_TO = CONFIG_SYS_TEXT_BASE + 0x4000
 PAD_TO	= 0x00804000
 
 ifeq ($(debug),1)