ARM: dts: uniphier: sync DT with latest Linux

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/uniphier_pro4_defconfig b/configs/uniphier_pro4_defconfig
index 9441b05..f71ef56 100644
--- a/configs/uniphier_pro4_defconfig
+++ b/configs/uniphier_pro4_defconfig
@@ -6,7 +6,7 @@
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000
-CONFIG_DEFAULT_DEVICE_TREE="uniphier-ph1-pro4-ref"
+CONFIG_DEFAULT_DEVICE_TREE="uniphier-pro4-ref"
 CONFIG_SPL_NOR_SUPPORT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y