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-imx/Makefile b/arch/arm/mach-imx/Makefile
index 80c497e..61b4f4f 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -126,7 +126,7 @@
 endif
 
 MKIMAGEFLAGS_u-boot.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
-	-T $(IMAGE_TYPE) -e $(CONFIG_SYS_TEXT_BASE)
+	-T $(IMAGE_TYPE) -e $(CONFIG_TEXT_BASE)
 u-boot.imx: MKIMAGEOUTPUT = u-boot.imx.log
 
 u-boot.imx: u-boot.bin u-boot.cfgout $(PLUGIN).bin FORCE
@@ -134,7 +134,7 @@
 
 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
 MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
-	-T $(IMAGE_TYPE) -e $(CONFIG_SYS_TEXT_BASE)
+	-T $(IMAGE_TYPE) -e $(CONFIG_TEXT_BASE)
 u-boot-dtb.imx: MKIMAGEOUTPUT = u-boot-dtb.imx.log
 
 u-boot-dtb.imx: u-boot-fit-dtb.bin u-boot-dtb.cfgout $(PLUGIN).bin FORCE
@@ -143,7 +143,7 @@
 endif
 else ifeq ($(CONFIG_OF_SEPARATE),y)
 MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
-	-T $(IMAGE_TYPE) -e $(CONFIG_SYS_TEXT_BASE)
+	-T $(IMAGE_TYPE) -e $(CONFIG_TEXT_BASE)
 u-boot-dtb.imx: MKIMAGEOUTPUT = u-boot-dtb.imx.log
 
 u-boot-dtb.imx: u-boot-dtb.bin u-boot-dtb.cfgout $(PLUGIN).bin FORCE
@@ -207,8 +207,8 @@
 SPL: spl/u-boot-spl.bin spl/u-boot-spl.cfgout $(PLUGIN).bin FORCE
 	$(call if_changed,mkimage)
 
-MKIMAGEFLAGS_u-boot.uim = -A arm -O U-Boot -a $(CONFIG_SYS_TEXT_BASE) \
-		-e $(CONFIG_SYS_TEXT_BASE) -C none -T firmware
+MKIMAGEFLAGS_u-boot.uim = -A arm -O U-Boot -a $(CONFIG_TEXT_BASE) \
+		-e $(CONFIG_TEXT_BASE) -C none -T firmware
 
 u-boot.uim: u-boot.bin FORCE
 	$(call if_changed,mkimage)