Camera: Change video capture duration with HFR

While capturing a video with HFR, duration is getting stored
properly in metadata but not in media database. While checking
details, duration is showing actual captured duration, not the
playback duration. After rebooting the phone, then media table
is getting updated with proper duration.

Fix made: After capture, change duration value as per user selected
HFR option.

CRs-Fixed: 627354

Change-Id: Ifb7c607e3545c4d2a2e0b1b7666cb0567640d416