[automerger skipped] Merge "Camera: Add new hidden API for camera open/close...

[automerger skipped] Merge "Camera: Add new hidden API for camera open/close callback" into qt-qpr1-dev am: ca1872dc -s ours am: d56c782f -s ours am: 1fa01696 -s ours am: fea6d41b -s ours am: 6c7d3065 -s ours

am skip reason: Change-Id I04cae782d96f0e32be8ef588dcd328f84b32887a with SHA-1 e375ee8f is in history

Change-Id: I3a16884b51ca6bf0145091bb67d4b3b330aa1653