ARM: UniPhier: move CONFIG_SYS_TEXT_BASE to Kconfig

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/ph1_sld8_defconfig b/configs/ph1_sld8_defconfig
index 29fe0e8..fc79866 100644
--- a/configs/ph1_sld8_defconfig
+++ b/configs/ph1_sld8_defconfig
@@ -3,6 +3,7 @@
 CONFIG_SPL_DM=y
 CONFIG_MACH_PH1_SLD8=y
 CONFIG_PFC_MICRO_SUPPORT_CARD=y
+CONFIG_SYS_TEXT_BASE=0x84000000
 CONFIG_DEFAULT_DEVICE_TREE="uniphier-ph1-sld8-ref"
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y