MFC 304832-304834,304972

MFC 304832-304834,304972

304832
    hyperv/hn: Use vmbus xact for RNDIS query.

    And switch MAC address query to use new RNDIS query function.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7639

304833
    hyperv/hn: Save the adopted NDIS version for RNDIS to use later.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7640

304834
    hyperv/hn: Use vmbus xact for RNDIS set.

    And use new RNDIS set to configure NDIS offloading parameters.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7641

304972
    hyperv/hn: Add definition for NDIS media state.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7652

git-svn-id: svn://svn.freebsd.org/base/stable/10@307181 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f