pinctrl: uniphier: add UniPhier PH1-sLD8 pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-sLD8 SoC.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/drivers/pinctrl/uniphier/Makefile b/drivers/pinctrl/uniphier/Makefile
index b1b597e..3349fff 100644
--- a/drivers/pinctrl/uniphier/Makefile
+++ b/drivers/pinctrl/uniphier/Makefile
@@ -2,3 +2,4 @@
 
 obj-$(CONFIG_PINCTRL_UNIPHIER_PH1_LD4)		+= pinctrl-ph1-ld4.o
 obj-$(CONFIG_PINCTRL_UNIPHIER_PH1_PRO4)		+= pinctrl-ph1-pro4.o
+obj-$(CONFIG_PINCTRL_UNIPHIER_PH1_SLD8)		+= pinctrl-ph1-sld8.o