vdin: support dolby 420 12bit [1/1]

PD#SWPL-169038

Problem:
dv 420 12bit input,display abnormal

Solution:
vdin bypass tunnel,dv bypass detunnel

Verify:
t5m

Change-Id: I384a65ff7fe8b022257050032f6d3d92d37dc3c6
Signed-off-by: haitao.liu <haitao.liu@amlogic.com>
5 files changed