Add OWNERS in system/media/camera

* This is copied from frameworks/av/camera/OWNERS.
* Owners will be suggested to review/approve future CLs.
* OWNERS files are recognized by the new find-owners plugin, see .md files in
  https://gerrit.googlesource.com/plugins/find-owners/+/master/src/main/resources/Documentation/

Test: build/make/tools/checkowners.py -c -v OWNERS
Change-Id: I5452c77ed8e9c476c2257718f239fbd56a56ee2e
1 file changed