added to OSN new handler for update config of channel #761

Job	Run time
Basic Checks	1m 50s
Unit Tests	25m 30s
Integration Tests (raft)	13m 25s
Integration Tests (ledger)	13m 31s
Integration Tests (discovery gossip devmode pluggable)	8m 52s
Integration Tests (pvtdatapurge e2e)	20m 52s
Integration Tests (pvtdata)	12m 20s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	16m 25s
Integration Tests (lifecycle)	6m 4s
Integration Tests (smartbft)	19m 52s
Integration Tests (sbe nwo msp)	7m 56s
Unit Tests	8m 32s
Integration Tests (raft)	13m 25s
Integration Tests (pvtdatapurge e2e)	20m 52s
Integration Tests (pvtdata)	12m 20s
Integration Tests (discovery gossip devmode pluggable)	8m 52s
Integration Tests (ledger)	13m 31s
Integration Tests (smartbft)	19m 52s
Integration Tests (lifecycle)	6m 4s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	16m 25s
Integration Tests (sbe nwo msp)	7m 56s
Basic Checks	1m 50s
	4h 36m 16s

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