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/boot-mode/Makefile b/arch/arm/mach-uniphier/boot-mode/Makefile
index 278df64..6cd096e 100644
--- a/arch/arm/mach-uniphier/boot-mode/Makefile
+++ b/arch/arm/mach-uniphier/boot-mode/Makefile
@@ -11,5 +11,6 @@
 obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= boot-mode-pro5.o
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= boot-mode-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= boot-mode-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= boot-mode-ld20.o
 
 obj-$(CONFIG_CMD_PINMON) += cmd_pinmon.o