TDBF_USEDTUNNEL flag manipulation was inside #ifdef INET.  it applies to INET6 too, so move it outside.  markus ok
TDBF_USEDTUNNEL flag manipulation was inside #ifdef INET.  it applies
to INET6 too, so move it outside.  markus ok

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars