arm64: dts: rockchip: Add missing space around regulator-name on rk3368-orion-r68

Add the missing space around the regulator-name property before the typo
spreads to other files.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20220612223201.2740248-3-niklas.soderlund+renesas@ragnatech.seSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3368-orion-r68-meta.dts

@@ -134,7 +134,7 @@ vcc_sys: vcc-sys-regulator {
 
 	vccio_sd: vcc-io-sd-regulator {
 		compatible = "regulator-fixed";
-		regulator-name= "vccio_sd";
+		regulator-name = "vccio_sd";
 		regulator-min-microvolt = <1800000>;
 		regulator-max-microvolt = <3300000>;
 		regulator-always-on;