Checkmk Werk 8908: Fixes calculations of latency for netapp_api_vs_traffic

ID: 8908 Title: Fixes calculations of latency for netapp_api_vs_traffic Component: Checks & agents Level: 1 Class: Bug fix Version: 1.7.0i1 Average latency, average read latency, and averate write latency are now calculated as a function of the number of ops instead of the time. See Werk 8901 for details.