[IOT-1575] Update to manage connection state of tcp session

[IOT-1575] Update to manage connection state of tcp session

If network interface is down, the socket of the connecting/connected
state will be closed.

Change-Id: I9f9cda2e3ab5672c336ed165ec4f189ab846f054
Signed-off-by: hyuna0213.jo <hyuna0213.jo@samsung.com>
Signed-off-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/14531
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Minji Park <minjii.park@samsung.com>
Reviewed-by: Ziran Sun <ziran.sun@samsung.com>