driver: video: Add critical priority and reserve duration

Critical priority - A video session which is prioritized above
all concurrent sessions. Such sessions have low latencies and
at the same time they cannot be rejected due to overload.
Reserve duration - Duration by which a session reserves the
video hardware for processing frames from that session.
Both the above aspects are implemented with these changes.

Change-Id: I58aef5f239e5ee106201d6819d2228784f0f0ad0
Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>

driver/vidc/inc/msm_vidc_control.h

@@ -119,6 +119,8 @@ int msm_vidc_set_level(void *instance,
 	enum msm_vidc_inst_capability_type cap_id);
 int msm_vidc_set_preprocess(void *instance,
 	enum msm_vidc_inst_capability_type cap_id);
+int msm_vidc_set_reserve_duration(void *instance,
+	enum msm_vidc_inst_capability_type cap_id);
 int msm_vidc_set_u32_enum(void *instance,
 	enum msm_vidc_inst_capability_type cap_id);
 int msm_vidc_set_q16(void *instance,