ARM: dts: rk3288: add delay for panel power on

Change-Id: I132ee50b9b3e0d8a3641135c94723d0a23bb5c40
Signed-off-by: xubilv <xbl@rock-chips.com>

Author: xubilv

arch/arm/boot/dts/rk3288-evb-android-rk818-mipi.dts

@@ -346,6 +346,8 @@
 		dsi,lanes = <4>;
 		delay,prepare = <120>;
 		delay,enable = <120>;
+		delay,reset = <20>;
+		delay,init = <20>;
 		status = "okay";
 
 		disp_timings: display-timings {