video: driver: Add support to print decode/encode stats

Add support to calculate and print encode and decode
time, and average time consumption per fbd sample.

Change-Id: I5e867833d1d88285bfebc8c9b9a593e3ed975ed5
Signed-off-by: Akshata Sahukar <asahukar@codeaurora.org>

driver/vidc/inc/msm_vidc_debug.h

@@ -135,5 +135,6 @@ void msm_vidc_debugfs_deinit_inst(void *inst);
 void msm_vidc_debugfs_update(void *inst,
 		enum msm_vidc_debugfs_event e);
 int msm_vidc_check_ratelimit(void);
+void msm_vidc_show_stats(void *inst);
 
 #endif

driver/vidc/inc/msm_vidc_internal.h

@@ -637,12 +637,12 @@ struct buf_count {
 };
 
 struct profile_data {
-	u32                    start;
-	u32                    stop;
-	u32                    cumulative;
+	u64                    start;
+	u64                    stop;
+	u64                    cumulative;
 	char                   name[64];
 	u32                    sampling;
-	u32                    average;
+	u64                    average;
 };
 
 struct msm_vidc_debug {