Rename CONFIG_SYS_TEXT_BASE to CONFIG_TEXT_BASE

The current name is inconsistent with SPL which uses CONFIG_SPL_TEXT_BASE
and this makes it imposible to use CONFIG_VAL().

Rename it to resolve this problem.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/ls1046a_common.h b/include/configs/ls1046a_common.h
index e5fb111..26ce93a 100644
--- a/include/configs/ls1046a_common.h
+++ b/include/configs/ls1046a_common.h
@@ -66,8 +66,8 @@
 
 /* NAND SPL */
 #ifdef CONFIG_NAND_BOOT
-#define CONFIG_SYS_NAND_U_BOOT_DST	CONFIG_SYS_TEXT_BASE
-#define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_DST	CONFIG_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_TEXT_BASE
 
 #define CONFIG_SYS_MONITOR_LEN		0xa0000
 #endif