Merge tag 'video-for-v2020.01-rc2' of https://gitlab.denx.de/u-boot/custodians/u-boot-video

- fix i.MX6ULL evk black screen observed while reboot stress tests
- remove "synopsys,dw-mipi-dsi" compatible to reduce the device tree
  differences between Linux and U-Boot for stm32mp1 platform

arch/arm/dts/stm32mp157c-dk2-u-boot.dtsi

@@ -5,13 +5,6 @@
 
 #include "stm32mp157a-dk1-u-boot.dtsi"
 
-/ {
-	dsi_host: dsi_host {
-		compatible = "synopsys,dw-mipi-dsi";
-		status = "okay";
-	};
-};
-
 &i2c1 {
 	hdmi-transmitter@39 {
 		reset-gpios = <&gpioa 10 GPIO_ACTIVE_LOW>;

arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi

@@ -14,11 +14,6 @@
 		spi0 = &qspi;
 		usb0 = &usbotg_hs;
 	};
-
-	dsi_host: dsi_host {
-		compatible = "synopsys,dw-mipi-dsi";
-		status = "okay";
-	};
 };
 
 &flash0 {