qemu: Move comments to virQEMUCapsGuestIsNative()
qemu: Move comments to virQEMUCapsGuestIsNative()

The function performing the checks, rather than its callers,
should contain comments explaining the rationale behind said
checks.

Signed-off-by: Andrea Bolognani <3ada0bee826c753786fdbba72243dfba997094cf@redhat.com>

nertpinx/libvirt,andreabolognani/libvirt,olafhering/libvirt,eskultety/libvirt,crobinso/libvirt,crobinso/libvirt,libvirt/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,nertpinx/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,jfehlig/libvirt,libvirt/libvirt,andreabolognani/libvirt,jfehlig/libvirt,olafhering/libvirt,libvirt/libvirt,nertpinx/libvirt,zippy2/libvirt,olafhering/libvirt,andreabolognani/libvirt,zippy2/libvirt,fabianfreyer/libvirt,eskultety/libvirt,crobinso/libvirt,libvirt/libvirt,jardasgit/libvirt,eskultety/libvirt,nertpinx/libvirt,jardasgit/libvirt,zippy2/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,crobinso/libvirt,jfehlig/libvirt,eskultety/libvirt,zippy2/libvirt,jardasgit/libvirt,andreabolognani/libvirt,nertpinx/libvirt,olafhering/libvirt,eskultety/libvirt