tests: rename 'test_getnetworkinginfo' in 'test_getnetworkinfo'
tests: rename 'test_getnetworkinginfo' in 'test_getnetworkinfo'

Since it's the name of the RPC call


Former-commit-id: 9d88d1c838c274fcdaf195ae3fb874f65c65f90b
syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin