arm64: dts: meson-gx-p23x-q20x: add keep-power-in-suspend property in SDIO node

The WiFi firmware requires that the power is kept enabled while in
suspend mode. Add the keep-power-in-suspend property in the SDIO node
to specify that the power must be kept when entering in a system wide
suspend state.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi

@@ -169,6 +169,9 @@
 	non-removable;
 	disable-wp;
 
+	/* WiFi firmware requires power to be kept while in suspend */
+	keep-power-in-suspend;
+
 	mmc-pwrseq = <&sdio_pwrseq>;
 
 	vmmc-supply = <&vddao_3v3>;