Changed SD advdata in gateway example, now has semi-unique device names
Changed SD advdata in gateway example, now has semi-unique
device names

mrquincle/nRF51-ble-bcast-mesh,mrquincle/nRF51-ble-bcast-mesh,mrquincle/nRF51-ble-bcast-mesh,mrquincle/nRF51-ble-bcast-mesh,ihassin/nRF51-ble-bcast-mesh,ihassin/nRF51-ble-bcast-mesh