msm: vidc: Fix priority level determination

Priority level was not determined at few sequences.
Determine the priority level and set to firmware, if
there is a change in driver and firmware priority.

Change-Id: I97861fd4ce8cfb7cf828a8da9a5ce8ba900280ef
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>

driver/vidc/inc/msm_vidc_inst.h

@@ -146,6 +146,7 @@ struct msm_vidc_inst {
 	struct msm_vidc_inst_capability   *capabilities;
 	struct completion                  completions[MAX_SIGNAL];
 	enum priority_level                priority_level;
+	u32                                firmware_priority;
 	bool                               active;
 	u64                                last_qbuf_time_ns;
 	bool                               vb2q_init;