Merge changes Ia5fec45a,I74927f73,I5a3c0b07

* changes:
  MTP: Fix typo in MtpServer::doGetObjectPropList
  MTP: Implement GetPartialObject command
  MTP: Use DateTime form in GetObjectPropDesc for date/time properties.
tree: 06dde769e7797dfca23d9c97dcb9b06be4772c2a
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/