decoder: CF1 Resolve serial port log error at dw=0. [1/1]

PD#SWPL-189976

Problem:
DW=0 entered the canvas setting logic.

Solution:
Dw=0 should not use canvas, canvas is only for yuv use

Verify:
BP201

Signed-off-by: kun.liu <kun.liu@amlogic.com>
Change-Id: I96f7a0fd0cc481dc7b24a04d3fbc4626820cb928
1 file changed