workaround: Update preview callback flag
- The preview callback flag should be updated
when preview callback is set by latest mmsvc-camera module,
but it could be missed with old mmsvc-camera module.
- Update preview callback flag when preview callback is set, but flag is not set.
- This is workaround patch and it will be removed after mmsvc-camera module is updated.
[Version] 1.1.2
[Issue Type] Compatibility
Change-Id: I810e6909cb5f0cb5ec431e2172556e58b7eca3b5
Signed-off-by: Jeongmo Yang <jm80.yang@samsung.com>