ARM: dts: rockchip: add space after &grf on rk3188

Fix layout by adding a space after &grf.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20210709103134.1750-1-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: Johan Jonker

arch/arm/boot/dts/rk3188.dtsi

@@ -638,7 +638,7 @@
 	power-domains = <&power RK3188_PD_GPU>;
 };
 
-&grf{
+&grf {
 	compatible = "rockchip,rk3188-grf", "syscon", "simple-mfd";
 
 	usbphy: usbphy {