v4l2dec: resolve invalid property id [1/1]

PD#SWPL-145305

Problem:
invalid property id 17 for "low-latency-mode" of
type 'GParamBoolean' in 'amlv4l2av1dec'

Solution:
add get property method

Verify:
ah212

Change-Id: Ie3740177125e43baa4208a564e669c6673c93ef3
Signed-off-by: hanghang.luo <hanghang.luo@amlogic.com>
1 file changed