ARM: dts: bcm283x: add pinctrl group to &sdhci, drop pins from &gpio

Signed-off-by: Gerd Hoffmann <[e-mail]>
Signed-off-by: Eric Anholt <[e-mail]>
Acked-by: Stefan Wahren <[e-mail]>

arch/arm/boot/dts/bcm2835-rpi.dtsi

···
 	};
 
 	alt3: alt3 {
-		brcm,pins = <48 49 50 51 52 53>;
+		brcm,pins = <>;
 		brcm,function = <BCM2835_FSEL_ALT3>;
 	};
 };
···
 };
 
 &sdhci {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_gpio48>;
 	status = "okay";
 	bus-width = <4>;
 };