ARM: dts: imx6qdl-apalis/-colibri: disable read-only switch

Use the disable-wp to indicate that Apalis and Colibri iMX6 do not
make use of the native write-protect signal available on the i.MX 6
SoCs. This prevents warnings:
  mmc0: host does not support reading read-only switch, assuming write-enable

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-apalis.dtsi

@@ -457,6 +457,7 @@
 	pinctrl-0 = <&pinctrl_usdhc1_4bit &pinctrl_usdhc1_8bit>;
 	vqmmc-supply = <&reg_3p3v>;
 	bus-width = <8>;
+	disable-wp;
 	no-1-8-v;
 	status = "disabled";
 };
@@ -467,6 +468,7 @@
 	pinctrl-0 = <&pinctrl_usdhc2>;
 	vqmmc-supply = <&reg_3p3v>;
 	bus-width = <4>;
+	disable-wp;
 	no-1-8-v;
 	status = "disabled";
 };