This enables using coap-observe-client with Bluetooth by passing
CONF_FILE=prj_bt.conf, it is also enabled for testing so changes to
coap-observe-client are actually tested with NETWORKING_WITH_BT.
Change-Id: I02705f855c1974b065557986f9b231201ba310a7
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Luiz Augusto von Dentz