ARM: dts: rockchip: readd missing mmc0 pinctrl settings

During the restructuring of the Rockchip Cortex-A9 dtsi files it seems
like the pinctrl settings vanished at some point from the mmc0 support.

This of course renders them unusable, so readd the necessary pinctrl
properties.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3066a-bqcurie2.dts

@@ -149,6 +149,8 @@ vcc28_cif: regulator@12 {
 &mmc0 { /* sdmmc */
 	num-slots = <1>;
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
 	vmmc-supply = <&vcc_sd0>;
 
 	slot@0 {

arch/arm/boot/dts/rk3188-radxarock.dts

@@ -179,6 +179,8 @@ vcc28: REG12 {
 &mmc0 {
 	num-slots = <1>;
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
 	vmmc-supply = <&vcc_sd0>;
 
 	slot@0 {