LF-4443-3: drm: bridge: cdns-hdmi: support more colorimetry

commit ef06bb057e9a82c5eb45e6f1674a1f9b36292ed9 from
https://github.com/nxp-imx/linux-imx

Add more DRM colorimetry mapping to video mode colorspace,
the video mode could be set to different colorspace by the command:

24bit RGB support
  modetest -M imx-dcss  -w 48:"Colorspace":0
24bit YUV420/YUV444
  modetest -M imx-dcss  -w 48:"Colorspace":1~5
Deep Color for YUV420/422
  modetest -M imx-dcss  -w 48:"Colorspace":8 or 10
Deep Color for RGB
  modetest -M imx-dcss  -w 48:"Colorspace":9

Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>