video: Add support for Arm's Mali Display Processors

Add support for Arm Mali Display Processors DP500, DP550 and DP650.
Only one layer is being used to display the console or boot logo,
even if more layers are supported in the hardware.

Signed-off-by: Liviu Dudau <liviu.dudau@foss.arm.com>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 6cd7f14..25c94f4 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -497,6 +497,14 @@
 
 source "drivers/video/rockchip/Kconfig"
 
+config VIDEO_ARM_MALIDP
+	bool "Enable Arm Mali Display Processor support"
+	depends on DM_VIDEO && OF_CONTROL
+	select VEXPRESS_CLK
+	help
+	  This enables support for Arm Ltd Mali Display Processors from
+	  the DP500, DP550 and DP650 family.
+
 config VIDEO_SANDBOX_SDL
 	bool "Enable sandbox video console using SDL"
 	depends on SANDBOX