videosink: CB1 not check plane 1 when dw = 0 [2/3]

PD#SWPL-187525

Problem:
not check plane 1 when dw = 0

Solution:
not check plane 1 when dw = 0

Verify:
AH212

Signed-off-by: le.han <le.han@amlogic.com>
Change-Id: I79863460d37fb16d400151c4fa61905f3aa25f7c
1 file changed