storage: Add timeout for iscsi volume's stable path discovery
storage: Add timeout for iscsi volume's stable path discovery

It might need some time till the LUN's stable path shows up on
initiator host, and although the time window is not foreseeable,
as a better than nothing fix, this patch adds timeout for the
stable path discovery process.

VenkatDatta/libvirt,datto/libvirt,jeckersb/libvirt,trainstack/libvirt,taget/libvirt,libvirt/libvirt,nertpinx/libvirt,bjzhang/libvirt,warewolf/libvirt,novel/fbsd-libvirt,iam-TJ/libvirt,olafhering/libvirt,jardasgit/libvirt,cbosdo/libvirt,rlaager/libvirt,emaste/libvirt,libvirt/libvirt,shugaoye/libvirt,shugaoye/libvirt,iam-TJ/libvirt,zippy2/libvirt,fabianfreyer/libvirt,elmarco/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,novel/fbsd-libvirt,elmarco/libvirt,libvirt/libvirt,agx/libvirt,iam-TJ/libvirt,datto/libvirt,elmarco/libvirt,bjzhang/libvirt,emaste/libvirt,emaste/libvirt,novel/fbsd-libvirt,shugaoye/libvirt,jeckersb/libvirt,olafhering/libvirt,datto/libvirt,datto/libvirt,trainstack/libvirt,andreabolognani/libvirt,siboulet/libvirt-openvz,jeckersb/libvirt,agx/libvirt,novel/fbsd-libvirt,bjzhang/libvirt,zippy2/libvirt,elmarco/libvirt,andreabolognani/libvirt,jardasgit/libvirt,nertpinx/libvirt,trainstack/libvirt,elmarco/libvirt,zippy2/libvirt,shugaoye/libvirt,crobinso/libvirt,shugaoye/libvirt,trainstack/libvirt,warewolf/libvirt,fabianfreyer/libvirt,rlaager/libvirt,andreabolognani/libvirt,nertpinx/libvirt,jfehlig/libvirt,taget/libvirt,eskultety/libvirt,novel/fbsd-libvirt,cbosdo/libvirt,libvirt/libvirt,eskultety/libvirt,eskultety/libvirt,novel/fbsd-libvirt,siboulet/libvirt-openvz,agx/libvirt,siboulet/libvirt-openvz,warewolf/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,agx/libvirt,siboulet/libvirt-openvz,rlaager/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,cbosdo/libvirt,emaste/libvirt,jfehlig/libvirt,taget/libvirt,agx/libvirt,zhlcindy/libvirt-1.1.4-maintain,cbosdo/libvirt,nertpinx/libvirt,siboulet/libvirt-openvz,VenkatDatta/libvirt,iam-TJ/libvirt,taget/libvirt,warewolf/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,novel/fbsd-libvirt,emaste/libvirt,fabianfreyer/libvirt,warewolf/libvirt,jardasgit/libvirt,jeckersb/libvirt,trainstack/libvirt,novel/fbsd-libvirt,zhlcindy/libvirt-1.1.4-maintain,warewolf/libvirt,eskultety/libvirt,jfehlig/libvirt,iam-TJ/libvirt,olafhering/libvirt,olafhering/libvirt,jeckersb/libvirt,datto/libvirt,andreabolognani/libvirt,eskultety/libvirt,jfehlig/libvirt,warewolf/libvirt,zippy2/libvirt,trainstack/libvirt,emaste/libvirt,novel/fbsd-libvirt,crobinso/libvirt,iam-TJ/libvirt,crobinso/libvirt,iam-TJ/libvirt,taget/libvirt,jardasgit/libvirt,rlaager/libvirt,jeckersb/libvirt,bjzhang/libvirt,zhlcindy/libvirt-1.1.4-maintain,bjzhang/libvirt,cbosdo/libvirt,jeckersb/libvirt,emaste/libvirt,crobinso/libvirt,zhlcindy/libvirt-1.1.4-maintain,rlaager/libvirt,trainstack/libvirt,andreabolognani/libvirt