ARM: dts: m28evk: Fix MMC WP pin being inverted

The MMC WP is active high on the m28evk, fix this.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28-m28evk.dts

@@ -63,7 +63,7 @@ ssp0: ssp@80010000 {
 					     &mmc0_cd_cfg
 					     &mmc0_sck_cfg>;
 				bus-width = <8>;
-				wp-gpios = <&gpio3 10 1>;
+				wp-gpios = <&gpio3 10 0>;
 				vmmc-supply = <&reg_vddio_sd0>;
 				status = "okay";
 			};