replaced previous coap header for BT with 'coap+gatt' and 'coap+rfcomm'
replaced previous coap header for BT with 'coap+gatt' and 'coap+rfcomm'

Change-Id: Ic78a27f34d2cc967344c5d7baae76f9a6415942e
Signed-off-by: jihwan.seo <69598d7552022c520cfdbefd16641727c7ff4ab5@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/8911
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Hyuna Jo <a3aecee2eabd6f87461b5d05d6fd0eaf35e269ed@samsung.com>
Reviewed-by: Jaehong Jo <69db334b3f87f30654728856fde276b43c835fe5@samsung.com>
Reviewed-by: Ashok Babu Channa <72ac47ef856ca3d131a57cba474ebed48591eeff@samsung.com>

iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity