Add 'tt32' command support to QETH driver

This allows Hercules users/developers on Windows to use the "tt32 debug" command to see debug messages coming from the CTCI-WIN modules (TunTap64/FishPack64 dlls) to verify properly/correct Hercules <--> CTCI-WIN communication/functionality.
Merge branch 'master' of github.com:s390guy/hercules-390