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/configs/uniphier_v8_defconfig b/configs/uniphier_v8_defconfig
index eccfb0d..d202508 100644
--- a/configs/uniphier_v8_defconfig
+++ b/configs/uniphier_v8_defconfig
@@ -2,7 +2,7 @@
 CONFIG_POSITION_INDEPENDENT=y
 CONFIG_ARM_SMCCC=y
 CONFIG_ARCH_UNIPHIER=y
-CONFIG_SYS_TEXT_BASE=0x00000000
+CONFIG_TEXT_BASE=0x00000000
 CONFIG_NR_DRAM_BANKS=3
 CONFIG_ENV_SIZE=0x2000
 CONFIG_DEFAULT_DEVICE_TREE="uniphier-ld20-ref"