rockchip: rk3399: Fix bootph prop for vop nodes

The vop nodes should not be included in TPL/SPL control FDT, it should
only be included at U-Boot proper pre-reloc phase.

Change to use bootph-some-ram prop to fix this.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3399-u-boot.dtsi b/arch/arm/dts/rk3399-u-boot.dtsi
index b9b8d3e..496f25d 100644
--- a/arch/arm/dts/rk3399-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-u-boot.dtsi
@@ -143,9 +143,9 @@
 };
 
 &vopb {
-	bootph-all;
+	bootph-some-ram;
 };
 
 &vopl {
-	bootph-all;
+	bootph-some-ram;
 };