arm64: dts: Edge: prevent some lp4 scale frequency for rk3399 lp4

lpddr4 scale frequency when display on, cause the display shake and
vop POST_BUF_EMPTY

Author: numbqq

arch/arm64/boot/dts/rockchip/rk3399-kedge.dtsi

@@ -437,11 +437,11 @@
        SYS_STATUS_NORMAL       800000
        SYS_STATUS_REBOOT       400000
        SYS_STATUS_SUSPEND      400000
-       SYS_STATUS_VIDEO_1080P  400000
+       SYS_STATUS_VIDEO_1080P  800000
        SYS_STATUS_VIDEO_4K     800000
        SYS_STATUS_VIDEO_4K_10B 800000
        SYS_STATUS_PERFORMANCE  800000
-       SYS_STATUS_BOOST        400000
+       SYS_STATUS_BOOST        800000
        SYS_STATUS_DUALVIEW     800000
        SYS_STATUS_ISP          800000
    >;