QCamera2: HAL3: correct timestamp calculation in HFR mode

When the phone powers up for several days,
the timestamp (in ns, nano sec) of frames will exceed the
precision of float data type.

It will lead to incorrect timestamp calculation in
HFR batch mode. Use double instead

Ack-by: Gaoxiang Chen


Change-Id: I63598e56178b980fa817c1c77f77f0e6a005767b
(cherry picked from commit 57dc5ae2c61e4baa2279b15eb7348c8918a43a62)
1 file changed