Fix crash - call function in unloaded so file

Fix crash - call function in unloaded so file

- In recorder_dispatcher_destroy(), camera_remove_export_data() is always called,
  but it could not be called if there is no camera data.
  Because "libmuse-recorder.so" does not have dependency to "libmuse-camera.so" which has camera_remove_export_data().
  "libmuse-camera.so" will be loaded when camera_data is used.

[Version] 0.3.22
[Issue Type] Bug fix

Change-Id: I4e49ef3f07a1b41ba5f547ec1824c4a662291300
Signed-off-by: Jeongmo Yang <jm80.yang@samsung.com>