ARM: dts: am57xx-idk: Add "vqmmc-supply" property for mmc2

Add "vqmmc-supply" property for mmc2 to indicate the supply connected
to the IO lines.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am57xx-idk-common.dtsi

@@ -410,6 +410,7 @@ &mmc1 {
 &mmc2 {
 	status = "okay";
 	vmmc-supply = <&v3_3d>;
+	vqmmc-supply = <&v3_3d>;
 	bus-width = <8>;
 	ti,non-removable;
 	max-frequency = <96000000>;