[IOT-762] Something wrong with handling unicast presence response - client always...

[IOT-762] Something wrong with handling unicast presence response - client always get "PRESENCE_TIMEOUT"

< Cause >
ocstack don't do ResetPresenceTTL() after getting presence response from server because there was no change in sequnceNumber

< Solution >
To resolve this case, it is just needed to put ResetPresenceTTL() before exit in this caseTo resolve this case, it seems that we just put ResetPresenceTTL() before exit in this case

Change-Id: If1e32692d3b859cea84382bded0cceecf42874d5
Signed-off-by: daeken.kwon <daeken.kwon@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/3581
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Patrick Lankswert <patrick.lankswert@intel.com>