Fix non-SenML message routing in normalizer (#573)
Fix non-SenML message routing in normalizer (#573)

Signed-off-by: Aleksandar Novakovic <5730e1b08649f92e222ad2d26329a6da6debebc2@mainflux.com>
drasko/mainflux,drasko/mainflux,drasko/mainflux,Mainflux/mainflux-lite