v4l2-uvm-test: add time stamp [1/1]

PD#SWPL-20017

Problem:
No timestamp for testing

Solution:
Add microseconds time stamp

Verify:
U212

Change-Id: Ib4b701f1d38db38c553eb3e7ad2058634866b26b
Signed-off-by: Song Zhao <song.zhao@amlogic.com>
3 files changed