MFC 305405,305407,305408,305410,305411,305453

MFC 305405,305407,305408,305410,305411,305453

305405
    hyperv/vmbus: Stringent header length and total length check.

    While I'm here, minor style changes.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7752

305407
    hyperv/hn: Stringent NVS notification length check.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7753

305408
    hyperv/hn: Stringent NVS RNDIS packets length checks.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7755

305410
    net/rndis: Define RNDIS status message, which could be sent by device.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7757

305411
    hyperv/hn: Stringent RNDIS control message length check.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7758

305453
    hyperv/hn: Stringent RNDIS packet message length/offset check.

    While I'm here, use definition in net/rndis.h

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D7782

git-svn-id: svn://svn.freebsd.org/base/stable/10@307198 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f