Convert CONFIG_IMX_VIDEO_SKIP et al to Kconfig

This converts the following to Kconfig:
   CONFIG_IMX_VIDEO_SKIP
   CONFIG_IMX_HDMI

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/video/imx/Kconfig b/drivers/video/imx/Kconfig
index afe950b..34e8b64 100644
--- a/drivers/video/imx/Kconfig
+++ b/drivers/video/imx/Kconfig
@@ -6,3 +6,10 @@
 	  This enables framebuffer driver for i.MX processors working
 	  on the IPUv3(Image Processing Unit) internal graphic processor.
 
+config IMX_VIDEO_SKIP
+	bool "Enable calling board_video_skip function"
+	depends on VIDEO_IPUV3
+
+config IMX_HDMI
+	bool "Enable HDMI support in IPUv3"
+	depends on VIDEO_IPUV3