MFC 300654,300655,300708
300654
hyperv/vmbus: Rework SynIC setup and teardown - Avoid bit fields. - Fix SINT setup (preserve required bits). MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D6529
300655
hyperv: Preserve required bits when disable Hypercall MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D6530
300708
hyperv: Rework guest id settings according to Hyper-V spec MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D6553