video: driver: ts_reorder for negative timestamps

The timestamp in the driver is stored in the U64 type, but if there
is a negative value in the timestamp and the timestamp needs to be
sorted, using the timestamp value directly to compare the size is to
use the U64 type, which will turn the negative timestamp value into
a very large positive timestamp value, resulting in the sorting
result of timestamp is incorrect.

Change-Id: I13ccdb2c0c4d7b4e32999c5e88092c636c1f0b69
Signed-off-by: Renjiang Han <quic_renjiang@quicinc.com>

driver/vidc/inc/msm_vidc_internal.h

@@ -879,7 +879,7 @@ struct msm_vidc_buffers {
 
 struct msm_vidc_sort {
 	struct list_head       list;
-	u64                    val;
+	s64                    val;
 };
 
 struct msm_vidc_timestamp {