amldemux: CB1 correct pts to if have elst [1/1]

PD#SWPL-81980

Problem:
correct-dts-if-have-elst-in-qtdemux.patch, will make dts negative,
which will make regression, so reverted by qtdemux Community

Solution:
refine 00011-correct-dts-if-have-elst-in-qtdemux.patch,
Correct pts instead of dts, do not make dts be negative

Verify:
AH212

Signed-off-by: zengliang.li <zengliang.li@amlogic.com>
Change-Id: Ia648ff8a7913e03897e1c40d1123ea0e1ea19477
2 files changed