arm: socfpga: Add pinmux for Arria 10

Add pinmux support for Arria 10.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index c494930..503b79f 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -11,6 +11,7 @@
 	   fpga_manager.o board.o
 
 obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += clock_manager_arria10.o \
+					pinmux_arria10.o	\
 					reset_manager_arria10.o
 
 obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o