[automerger skipped] Merge "Camera: Add onCameraOpened/onCameraClosed callbacks" into qt-qpr1-dev am: 67110b51 -s ours am: f5cdfb9b -s ours am: ce22a8e0 -s ours am: 714edf8e -s ours am: 73d37436 -s ours

am skip reason: Change-Id If6f3624c43927c30afef7df0a780eafe3ae4c527 with SHA-1 1bb30b2e is in history

Change-Id: I2033832dc870882bbf0e41c36322957d90038e74