dts: rockchip: rk3399: enable emmc phy for spl
http://patchwork.ozlabs.org/project/uboot/patch/20211101044347.17822-1-yifeng.zhao@rock-chips.com/

fixes emmc boot on pinebook pro

Index: arch/arm/dts/rk3399-u-boot.dtsi
--- arch/arm/dts/rk3399-u-boot.dtsi.orig
+++ arch/arm/dts/rk3399-u-boot.dtsi
@@ -88,6 +88,10 @@
 	u-boot,dm-pre-reloc;
 };
 
+&emmc_phy {
+	u-boot,dm-pre-reloc;
+};
+
 &grf {
 	u-boot,dm-pre-reloc;
 };
