pinctrl: uniphier: add UniPhier sLD3 pinctrl driver

Add pin-mux support for UniPhier sLD3 SoC.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/drivers/pinctrl/uniphier/Makefile b/drivers/pinctrl/uniphier/Makefile
index 4de251b..fd003ad 100644
--- a/drivers/pinctrl/uniphier/Makefile
+++ b/drivers/pinctrl/uniphier/Makefile
@@ -4,6 +4,7 @@
 
 obj-y					+= pinctrl-uniphier-core.o
 
+obj-$(CONFIG_PINCTRL_UNIPHIER_SLD3)	+= pinctrl-uniphier-sld3.o
 obj-$(CONFIG_PINCTRL_UNIPHIER_LD4)	+= pinctrl-uniphier-ld4.o
 obj-$(CONFIG_PINCTRL_UNIPHIER_PRO4)	+= pinctrl-uniphier-pro4.o
 obj-$(CONFIG_PINCTRL_UNIPHIER_SLD8)	+= pinctrl-uniphier-sld8.o