ARM: UniPhier: move UART pin settings to SPL

The UniPhier platform is going to enable Driver Model and UART
support on SPL.  Move UART pin settings to early_pin_init(),
which is called from SPL.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/ph1-pro4/Makefile b/arch/arm/mach-uniphier/ph1-pro4/Makefile
index ac27d9b..f6a584e 100644
--- a/arch/arm/mach-uniphier/ph1-pro4/Makefile
+++ b/arch/arm/mach-uniphier/ph1-pro4/Makefile
@@ -5,7 +5,7 @@
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
 obj-y += sg_init.o pll_init.o early_clkrst_init.o \
-	pll_spectrum.o umc_init.o ddrphy_init.o
+	early_pinctrl.o pll_spectrum.o umc_init.o ddrphy_init.o
 obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
 obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o
 obj-$(CONFIG_SPL_DM) += platdevice.o