ARM: uniphier: add PH1-LD20 SoC support

This is the first ARMv8 SoC from Socionext Inc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/pinctrl/Makefile b/arch/arm/mach-uniphier/pinctrl/Makefile
index 5504c24..b579cb0 100644
--- a/arch/arm/mach-uniphier/pinctrl/Makefile
+++ b/arch/arm/mach-uniphier/pinctrl/Makefile
@@ -9,3 +9,4 @@
 obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= pinctrl-pro5.o
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= pinctrl-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= pinctrl-ld6b.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= pinctrl-ld20.o