Add missing return statements
Add missing return statements

Several non-void methods were missing their return statements in case
OCException was thrown.

Change-Id: Ic18aed97c5389426c6e36695a5886538174afdc9
Signed-off-by: Erkka Kääriä <bde0a4a3fc20ec41a2078c0a59a257d075b85756@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/4177
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: jihwan seo <69598d7552022c520cfdbefd16641727c7ff4ab5@samsung.com>
Reviewed-by: Naga Ashok Jampani <32619ffa69e16d1824dee3fe1b220f9cc76468e4@samsung.com>
Reviewed-by: Jon A. Cruz <d4ae605477945a543a3ecda8955c93978db16a84@osg.samsung.com>

iotivity/iotivity,santais/iotivity,santais/iotivity,santais/iotivity,rzr/iotivity,santais/iotivity_1.1.0,santais/iotivity_1.1,santais/iotivity_1.1,iotivity/iotivity,santais/iotivity,santais/iotivity_1.1.0,santais/iotivity_1.1.0,santais/iotivity_1.1,iotivity/iotivity,santais/iotivity,santais/iotivity_1.1,iotivity/iotivity,rzr/iotivity,santais/iotivity,iotivity/iotivity,rzr/iotivity,santais/iotivity_1.1.0,iotivity/iotivity,rzr/iotivity,santais/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,santais/iotivity_1.1,rzr/iotivity,santais/iotivity_1.1,santais/iotivity_1.1.0,santais/iotivity_1.1.0,santais/iotivity_1.1.0,santais/iotivity_1.1,santais/iotivity_1.1