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/board/broadcom/bcmstb/bcmstb.c b/board/broadcom/bcmstb/bcmstb.c
index 07aeb09..aead6f0 100644
--- a/board/broadcom/bcmstb/bcmstb.c
+++ b/board/broadcom/bcmstb/bcmstb.c
@@ -61,13 +61,13 @@
 
 	/*
 	 * On this SoC, U-Boot is running as an ELF file.  Change the
-	 * relocation address to CONFIG_SYS_TEXT_BASE, so that in
+	 * relocation address to CONFIG_TEXT_BASE, so that in
 	 * setup_reloc, gd->reloc_off works out to 0, effectively
 	 * disabling relocation.  Otherwise U-Boot hangs in the setup
 	 * instructions just before relocate_code in
 	 * arch/arm/lib/crt0.S.
 	 */
-	gd->relocaddr = CONFIG_SYS_TEXT_BASE;
+	gd->relocaddr = CONFIG_TEXT_BASE;
 
 	return 0;
 }