arm64: dts: renesas: beacon: Remove the 'pm-ignore-notify' property

The 'pm-ignore-notify' property is not a valid property and there is
no bindings documentation for it.

Drop such invalid property.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20211208195624.1864654-1-festevam@gmail.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi

@@ -293,7 +293,6 @@ &sdhi2 {
 	vqmmc-supply = <&reg_1p8v>;
 	non-removable;
 	cap-power-off-card;
-	pm-ignore-notify;
 	keep-power-in-suspend;
 	mmc-pwrseq = <&wlan_pwrseq>;
 	status = "okay";