video-driver: disable dynamic low latency

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>

driver/vidc/inc/msm_vidc_control.h

@@ -102,7 +102,6 @@ int msm_vidc_set_csc_custom_matrix(void *instance,
 	enum msm_vidc_inst_capability_type cap_id);
 int msm_vidc_set_session_priority(void* instance,
 	enum msm_vidc_inst_capability_type cap_id);
-int msm_vidc_set_seq_change_at_sync_frame(void *instance);
 int msm_vidc_set_level(void *instance,
 	enum msm_vidc_inst_capability_type cap_id);
 int msm_vidc_set_s32(void *instance,