virtio: find_vqs/del_vqs virtio operations
This replaces find_vq/del_vq with find_vqs/del_vqs virtio operations,
and updates all drivers. This is needed for MSI support, because MSI
needs to know the total number of vectors upfront.
Signed-off-by: 
Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (+ lguest/9p compile fixes)
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- drivers/block/virtio_blk.c 3 additions, 3 deletionsdrivers/block/virtio_blk.c
- drivers/char/hw_random/virtio-rng.c 3 additions, 3 deletionsdrivers/char/hw_random/virtio-rng.c
- drivers/char/virtio_console.c 11 additions, 15 deletionsdrivers/char/virtio_console.c
- drivers/lguest/lguest_device.c 34 additions, 2 deletionsdrivers/lguest/lguest_device.c
- drivers/net/virtio_net.c 18 additions, 27 deletionsdrivers/net/virtio_net.c
- drivers/s390/kvm/kvm_virtio.c 34 additions, 2 deletionsdrivers/s390/kvm/kvm_virtio.c
- drivers/virtio/virtio_balloon.c 11 additions, 16 deletionsdrivers/virtio/virtio_balloon.c
- drivers/virtio/virtio_pci.c 30 additions, 7 deletionsdrivers/virtio/virtio_pci.c
- include/linux/virtio_config.h 36 additions, 11 deletionsinclude/linux/virtio_config.h
- net/9p/trans_virtio.c 3 additions, 3 deletionsnet/9p/trans_virtio.c
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