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/arch/arm/mach-omap2/config_secure.mk b/arch/arm/mach-omap2/config_secure.mk
index 0629afd..f76262b 100644
--- a/arch/arm/mach-omap2/config_secure.mk
+++ b/arch/arm/mach-omap2/config_secure.mk
@@ -10,7 +10,7 @@
 	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
 else
 cmd_mkomapsecimg = $(TI_SECURE_DEV_PKG)/scripts/create-boot-image.sh \
-	$(patsubst u-boot_HS_%,%,$(@F)) $< $@ $(CONFIG_SYS_TEXT_BASE) \
+	$(patsubst u-boot_HS_%,%,$(@F)) $< $@ $(CONFIG_TEXT_BASE) \
 	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
 endif
 else
@@ -102,7 +102,7 @@
 ifdef CONFIG_SPL_LOAD_FIT
 
 MKIMAGEFLAGS_u-boot_HS.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
-	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
+	-a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb_HS,$(subst ",,$(CONFIG_OF_LIST)))