Camera2: Correct copyright notice

We modified this file, so we can add our copyright
here so it's retained in translation xml files

Change-Id: I08ca32eb25bb09c610379801a513bf1679891eb4
Close open cursors

Cursors which got created during any query, needs to be closed
finally. Otherwise it'll cause leak in resource and cursor window
allocation will fail.

Change-Id: I65ace2dc227e0a50c163faba13fdb0fbfa71bc6c
CRs-Fixed: 594264