Android u qpr2 beta 3.1 release 0.8
Use bit depth to calculate work load

10bit video uses more bandwidth than 8bit video. Use bit depth
to in work load calculation to reflect the difference. In this
way the driver will vote slightly higher bandwidth for 10bit
videos.

Bug: 275486591

Change-Id: I82e5ee415a6ae0cdeac6546aeb35b8a71f3141d7
Signed-off-by: Ruofei Ma <ruofeim@google.com>