MFC 300108,300111,300112,300120,300121

MFC 300108,300111,300112,300120,300121

300108
    hyperv/vmbus: Minor white space and style cleanup

    MFC after:  1 week
    Sponsored by:       Microsoft OSTC
    Differential Revision:      https://reviews.freebsd.org/D6407

300111
    hyperv/vmbus: Utilize curcpu

    MFC after:  1 week
    Sponsored by:       Microsoft OSTC
    Differential Revision:      https://reviews.freebsd.org/D6408

300112
    hyperv/vmbus: Function renaming vmbus_msg_swintr -> vmbus_msg_task

    It is not an SWI handler for a long time.

    MFC after:  1 week
    Sponsored by:       Microsoft OSTC
    Differential Revision:      https://reviews.freebsd.org/D6409

300120
    hyperv/vmbus: Remove useless modevent handler

    MFC after:  1 week
    Sponsored by:       Microsoft OSTC
    Differential Revision:      https://reviews.freebsd.org/D6410

300121
    hyperv/vmbus: Nuke unnecessary function indirection

    MFC after:  1 week
    Sponsored by:       Microsoft OSTC
    Differential Revision:      https://reviews.freebsd.org/D6411

git-svn-id: svn://svn.freebsd.org/base/stable/10@302111 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f