Do not use content light level if it's 0

Do not set CTA861_3 bit if content light level
fields are 0, these may indicate that CLL is
not present in the bitstream. Let display or
compositor use default if needed.

bug: 152581483
Change-Id: I6764623130f839df83fd6f5db1b97ab768a8642d
Merged-In: I6764623130f839df83fd6f5db1b97ab768a8642d
(cherry picked from commit cbbbfab2126050a84ab9067824c3cdb62d581e83)
1 file changed