RDKTV-17519 Fixed HDR color drop issue

Reason for change: On gstreamer-1.18 version onward mastering display
info is changed and caps

Test Procedure: Execute Youtube HDR video playback and check the color
values and formats

Risks: Low

Signed-off-by: sputhi200 <Sujeesh_Puthiya@comcast.com>
Change-Id: I68657af76ef0585125184f0c3c65a346a535b78f