[Libvirt-cim] [PATCH 0 of 3] #3 - SDC: Fixed type of returned instance and error code

Patch 1: The returned RASD instances have been of the general classname ResourceAllocationSettingData instead of the type specific one, e.g. ProcResourceAllocationSettingData Patch 2: RASD to AllocationCapabilities should return NOT_SUPPORTED instead of OK Diff to #1: patch 1: fixed missing check for unknown resource type Diff to #2: - added helper function to RASD that translates the resource type into the classname (patch 1 of 3) - updated patch 2 (#1 before) to make use of the helper function - updated patch 3 (#2 before) to make use of RETURN_UNSUPPORTED macro