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/mt7622.h b/include/configs/mt7622.h
index 78d79b7..f995399 100644
--- a/include/configs/mt7622.h
+++ b/include/configs/mt7622.h
@@ -14,10 +14,10 @@
 #define CONFIG_SYS_NONCACHED_MEMORY	SZ_1M
 
 /* Uboot definition */
-#define CONFIG_SYS_UBOOT_BASE                   CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_UBOOT_BASE                   CONFIG_TEXT_BASE
 
 /* SPL -> Uboot */
-#define CONFIG_SYS_UBOOT_START		CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_UBOOT_START		CONFIG_TEXT_BASE
 /* DRAM */
 #define CONFIG_SYS_SDRAM_BASE		0x40000000