video: Add support for NXP's TDA19988 HDMI encoder

Add support for the NXP TDA19988 HDMI encoder as used on the Juno
development board from Arm.

Signed-off-by: Liviu Dudau <liviu.dudau@foss.arm.com>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index c680666..6cd7f14 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -431,6 +431,14 @@
 	   The devices provide a simple interface to start up the display,
 	   read display information and enable it.
 
+config NXP_TDA19988
+	bool "Enable NXP TDA19988 support"
+	depends on DISPLAY
+	default n
+	help
+	  This enables support for the NXP TDA19988 HDMI encoder. This encoder
+	  will convert RGB data streams into HDMI-encoded signals.
+
 config ATMEL_HLCD
 	bool "Enable ATMEL video support using HLCDC"
 	depends on DM_VIDEO