Dynamic low latency causes decoder input PSC triggered
for every IDR frame, leading to clock increasing.
And this also causes power higher
for VT call. Thus, need the following changes:
1. Disable dynamic low latency when low latency mode
is enabled;
2. DO NOT allow config low latency mode after
stream on.
Change-Id: Ia57f4c75617214b0352b263425ad9b445ff95524
Signed-off-by: Zhongbo Shi <quic_zhongbos@quicinc.com>