vty: Print Osmux CID on lchans using Osmux
vty: Print Osmux CID on lchans using Osmux

Related: SYS#5987
Change-Id: Ide6edefda828e9ce04fbb60cf547857f322d5f40

osmocom/osmo-bts,osmocom/osmo-bts,osmocom/osmo-bts