amldemux: CB1 support push mode seek [1/1]

PD#SWPL-131112

Problem:
support push mode seek

Solution:
support push mode seek

Verify:
(detail info)

Change-Id: Ibdad606d5b4f260efe2e78d21ba3fd1d1bdbe965
Signed-off-by: xuesong.jiang <xuesong.jiang@amlogic.com>
4 files changed