ARM: dts: rmobile: Add eMMC DS pinmux

Add pinmux entry for the eMMC DS line, as it is connected on these boards.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/dts/ulcb.dtsi b/arch/arm/dts/ulcb.dtsi
index ab88665..96a0e08 100644
--- a/arch/arm/dts/ulcb.dtsi
+++ b/arch/arm/dts/ulcb.dtsi
@@ -308,13 +308,13 @@
 	};
 
 	sdhi2_pins: sd2 {
-		groups = "sdhi2_data8", "sdhi2_ctrl";
+		groups = "sdhi2_data8", "sdhi2_ctrl", "sdhi2_ds";
 		function = "sdhi2";
 		power-source = <1800>;
 	};
 
 	sdhi2_pins_uhs: sd2_uhs {
-		groups = "sdhi2_data8", "sdhi2_ctrl";
+		groups = "sdhi2_data8", "sdhi2_ctrl", "sdhi2_ds";
 		function = "sdhi2";
 		power-source = <1800>;
 	};