Camera: obtain and use the timestamp from camera driver to

 avoid jerkiness in recorded clip.

Fix the jerkiness in recorded clip by getting the timestamp from camera
driver instead of using the timestamp generated at camera HAL, thus
avoiding thread scheduling dependency.

CRs-Fixed: 232272

Change-Id: Ifded5d7c08c1aad1b67c690d4b6d0eee34b9ab90
Merge "Camera: obtain and use the timestamp from camera driver to" into cm-10.1