ARM: tegra: nyan: The WiFi card is kept powered during suspend

Even if the host controller doesn't have power during suspend, the card
is kept powered.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra124-nyan.dtsi

@@ -378,6 +378,7 @@
 		mmc-pwrseq = <&sdhci0_pwrseq>;
 		vmmc-supply = <&vdd_3v3_lp0>;
 		vqmmc-supply = <&vddio_1v8>;
+		keep-power-in-suspend;
 	};
 
 	sdhci@0,700b0400 { /* SD Card on this bus */