Adding retry logic for gatt connection for VD client

Adding retry logic for gatt connection for VD client

- There was an issue initially reported for LUX, that Gatt Client disconnects just after it connects
- Connection retry logic was added as a fix in the commit 25ef240cc9978fa5945a26e72a8e763c436960db
- Again the same issue was reported for TV
- So adding the same fix in VD client

https://github.sec.samsung.net/RS7-IOTIVITY/IoTivity/commit/6faf5ba264411d383ec5c3225f9fdcd90690088d
(cherry-picked from 6faf5ba264411d383ec5c3225f9fdcd90690088d)

Change-Id: I0c7ad06e65b1c1774b9d7269be64a2f569d55664
Signed-off-by: samanway-dey <samanway.dey@samsung.com>
Signed-off-by: Sudipto <sudipto.bal@samsung.com>