sysinfo: Don't try to run dmidecode on archs missing it
sysinfo: Don't try to run dmidecode on archs missing it

DMI table is Intel & Intel-compatible specific. Therefore other
architectures miss dmidecode command. So we always fail in searching
for that command on non-Intel architectures.

rmarwaha/libvirt,rmarwaha/libvirt,VenkatDatta/libvirt,jeckersb/libvirt,novel/fbsd-libvirt,jeckersb/libvirt,iam-TJ/libvirt,siboulet/libvirt-openvz,siboulet/libvirt-openvz,wiedi/libvirt,eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,jeckersb/libvirt,elmarco/libvirt,datto/libvirt,zhlcindy/libvirt-1.1.4-maintain,jeckersb/libvirt,fabianfreyer/libvirt,trainstack/libvirt,VenkatDatta/libvirt,trainstack/libvirt,usc-isi/libvirt,elmarco/libvirt,jfehlig/libvirt,usc-isi/libvirt,jeckersb/libvirt,emaste/libvirt,shugaoye/libvirt,cbosdo/libvirt,leilihh/libvirt,agx/libvirt,usc-isi/libvirt,leilihh/libvirt,shugaoye/libvirt,warewolf/libvirt,datto/libvirt,usc-isi/libvirt,wiedi/libvirt,rmarwaha/libvirt,elmarco/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,emaste/libvirt,olafhering/libvirt,emaste/libvirt,andreabolognani/libvirt,iam-TJ/libvirt,rlaager/libvirt,nertpinx/libvirt,iam-TJ/libvirt,eskultety/libvirt,olafhering/libvirt,leilihh/libvirt,rmarwaha/libvirt1,novel/fbsd-libvirt,soulxu/libvirt-xuhj,taget/libvirt,dumbbell/libvirt,bjzhang/libvirt,bjzhang/libvirt,warewolf/libvirt,nertpinx/libvirt,agx/libvirt,crobinso/libvirt,novel/fbsd-libvirt,VenkatDatta/libvirt,emaste/libvirt,emaste/libvirt,jfehlig/libvirt,iam-TJ/libvirt,foomango/libvirt,eskultety/libvirt,elmarco/libvirt,taget/libvirt,fabianfreyer/libvirt,olafhering/libvirt,nertpinx/libvirt,iam-TJ/libvirt,taget/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt1,libvirt/libvirt,bjzhang/libvirt,dumbbell/libvirt,emaste/libvirt,rmarwaha/libvirt1,elmarco/libvirt,trainstack/libvirt,zhlcindy/libvirt-1.1.4-maintain,eskultety/libvirt,siboulet/libvirt-openvz,kantai/libvirt-vfork,jardasgit/libvirt,zippy2/libvirt,rmarwaha/libvirt1,novel/fbsd-libvirt,warewolf/libvirt,jardasgit/libvirt,agx/libvirt,bjzhang/libvirt,crobinso/libvirt,wiedi/libvirt,zhlcindy/libvirt-1.1.4-maintain,rmarwaha/libvirt,rmarwaha/libvirt,taget/libvirt,danwent/libvirt-ovs,cbosdo/libvirt,rmarwaha/libvirt1,zippy2/libvirt,jardasgit/libvirt,warewolf/libvirt,dumbbell/libvirt,VenkatDatta/libvirt,soulxu/libvirt-xuhj,trainstack/libvirt,nertpinx/libvirt,zippy2/libvirt,libvirt/libvirt,olafhering/libvirt,rlaager/libvirt,andreabolognani/libvirt,shugaoye/libvirt,rlaager/libvirt,danwent/libvirt-ovs,novel/fbsd-libvirt,trainstack/libvirt,kantai/libvirt-vfork,VenkatDatta/libvirt,danwent/libvirt-ovs,crobinso/libvirt,danwent/libvirt-ovs,foomango/libvirt,rmarwaha/libvirt1,zippy2/libvirt,andreabolognani/libvirt,iam-TJ/libvirt,libvirt/libvirt,novel/fbsd-libvirt,jfehlig/libvirt,datto/libvirt,bjzhang/libvirt,warewolf/libvirt,jeckersb/libvirt,soulxu/libvirt-xuhj,foomango/libvirt,rlaager/libvirt,jardasgit/libvirt,agx/libvirt,trainstack/libvirt,foomango/libvirt,rmarwaha/libvirt,shugaoye/libvirt,fabianfreyer/libvirt,eskultety/libvirt,iam-TJ/libvirt,foomango/libvirt,kantai/libvirt-vfork,nertpinx/libvirt,libvirt/libvirt,wiedi/libvirt,rlaager/libvirt,siboulet/libvirt-openvz,shugaoye/libvirt,siboulet/libvirt-openvz,soulxu/libvirt-xuhj,cbosdo/libvirt,datto/libvirt,leilihh/libvirt,novel/fbsd-libvirt,jeckersb/libvirt,jardasgit/libvirt,taget/libvirt,dumbbell/libvirt,wiedi/libvirt,agx/libvirt,dumbbell/libvirt,kantai/libvirt-vfork,zhlcindy/libvirt-1.1.4-maintain,novel/fbsd-libvirt,cbosdo/libvirt,leilihh/libvirt,danwent/libvirt-ovs,warewolf/libvirt,trainstack/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,warewolf/libvirt,wiedi/libvirt,dumbbell/libvirt,crobinso/libvirt,usc-isi/libvirt,wiedi/libvirt,soulxu/libvirt-xuhj,kantai/libvirt-vfork,emaste/libvirt,jfehlig/libvirt,leilihh/libvirt,cbosdo/libvirt,datto/libvirt