Update chaincode language parameter name
Update chaincode language parameter name

Signed-off-by: Stefan Obermeier <aaceae8a9317dcabe9a485b1331a6684d8e442ee@apache.org>
(cherry picked from commit 09393f605d57f670b7d3dfa4b50a2ed5aeb67c9e)

manish-sethi/fabric,hyperledger/fabric,hyperledger/fabric,manish-sethi/fabric