qemu: Check return code from qemuHostdevPrepareSCSIDevices
qemu: Check return code from qemuHostdevPrepareSCSIDevices

Signed-off-by: Eric Farman <45cff695b8fa5cc07d58f6876a8fd504d010e3e3@linux.vnet.ibm.com>

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