libvmmapi: Make vm_raise_msi() a common function

[markj]

Summary

Currently, bhyve PCI emulation uses vm_lapic_msi() to raise an MSI in
the guest. The arm64 port has a similar function, vm_raise_msi().
Add vm_raise_msi() on amd64 as well and have it simply call
vm_lapic_msi() so that bhyve can use a common, generically named
function.

For some reason the arm64 VM_RAISE_MSI ioctl takes a PCI device
identifier, but it is unused. Simply remove those parameters from the
arm64 prototype for now.

[corvink]

lib/libvmmapi/vmmapi.h

171

Nit: This doesn't belong to your change.

[andrew]

lib/libvmmapi/aarch64/vmmapi_machdep.c

112

If we implement the GICv3 ITS we will likely need some of these fields.

[markj]

Restore PCI b/s/f tuple parameters.

[jhb]

Don't forget to drop the last paragraph from the commit log.