Fix callback issue which there is no payload in case of error message.

Fix callback issue which there is no payload in case of error message.

check logic what payload is parsed was modified in
https://gerrit.iotivity.org/gerrit/#/c/15197/.
However that change cause some issue which
there is no payload in case of error message
with general get/put/post/delete message except for oic/res.

payload should be set in common in OCHandleResponse method.

Change-Id: I0c415022e35573ae76e730d9973206d218f18174
Signed-off-by: jihwan.seo <jihwan.seo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/17165
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-by: Habib Virji <habib.virji@samsung.com>
Reviewed-by: Ashok Babu Channa <ashok.channa@samsung.com>