ARM: dts: uniphier: resync DT with Linux 5.9-rc1

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-pinctrl.dtsi b/arch/arm/dts/uniphier-pinctrl.dtsi
index bfdfb76..c0fd029 100644
--- a/arch/arm/dts/uniphier-pinctrl.dtsi
+++ b/arch/arm/dts/uniphier-pinctrl.dtsi
@@ -126,6 +126,11 @@
 		function = "nand";
 	};
 
+	pinctrl_pcie: pcie {
+		groups = "pcie";
+		function = "pcie";
+	};
+
 	pinctrl_sd: sd {
 		groups = "sd";
 		function = "sd";