[Backport] Fix unexpected windows opening
Fix unexpected windows opening:
- Swap values between LINPHONE_VIDEO_DISPLAY_NONE and LINPHONE_VIDEO_DISPLAY_AUTO to match with NULL value. Keep the old behavior that is using AUTO by default.
- Swap values between MS_FILTER_VIDEO_NONE and MS_FILTER_VIDEO_AUTO to match with NULL value.Change values for MS_FILTER_VIDEO to be coherent with unset id as NULL.
- MSQOGL: take account of MS_FILTER_VIDEO_NONE and MS_FILTER_VIDEO_AUTO.
- Remove checks on ID nullity for preview ID and propagate the value to take account of its value.
Edited by Julien Wadel