DV: FEL display black in adaptive mode [1/1]

PD#SWPL-51701

Problem:
FEL is treat as SDR video, but still send
dv vsif pkt

Solution:
not send hdmi visf pkt ahead for FEL

Verify:
sc2

Signed-off-by: yao liu <yao.liu@amlogic.com>
Change-Id: I708af63d0e818083a6f1e8365bd19c5e8a065b22