v4l2dec: refine dw=0 [1/1]

PD#SWPL-166086

Problem:
when dw=0, some check failed

Solution:
1、set dw in advance
2、set width = height = 64 when dw=0.

Verify:
ap222

Change-Id: I127e340b695517ab34cd959053e887f423dad6a0
Signed-off-by: hanghang.luo <hanghang.luo@amlogic.com>
2 files changed