esx_vi: Resolve Coverity RESOURCE_LEAK in error path
esx_vi: Resolve Coverity RESOURCE_LEAK in error path

New coverity installation determined that the muliple if condition for
"*Alloc" and "*AppendToList" could fail during AppendToList thus leaking
memory.

rlaager/libvirt,eskultety/libvirt,nertpinx/libvirt,eskultety/libvirt,shugaoye/libvirt,olafhering/libvirt,datto/libvirt,andreabolognani/libvirt,elmarco/libvirt,rlaager/libvirt,elmarco/libvirt,agx/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,rlaager/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,zippy2/libvirt,VenkatDatta/libvirt,taget/libvirt,datto/libvirt,datto/libvirt,cbosdo/libvirt,datto/libvirt,datto/libvirt,crobinso/libvirt,jardasgit/libvirt,taget/libvirt,elmarco/libvirt,zhlcindy/libvirt-1.1.4-maintain,agx/libvirt,taget/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,zhlcindy/libvirt-1.1.4-maintain,zhlcindy/libvirt-1.1.4-maintain,fabianfreyer/libvirt,jfehlig/libvirt,libvirt/libvirt,elmarco/libvirt,eskultety/libvirt,agx/libvirt,libvirt/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,taget/libvirt,jardasgit/libvirt,zippy2/libvirt,nertpinx/libvirt,zippy2/libvirt,nertpinx/libvirt,nertpinx/libvirt,crobinso/libvirt,shugaoye/libvirt,agx/libvirt,crobinso/libvirt,rlaager/libvirt,nertpinx/libvirt,jfehlig/libvirt,cbosdo/libvirt,zhlcindy/libvirt-1.1.4-maintain,fabianfreyer/libvirt,crobinso/libvirt,libvirt/libvirt,jfehlig/libvirt,olafhering/libvirt,andreabolognani/libvirt,libvirt/libvirt,shugaoye/libvirt,jardasgit/libvirt,zhlcindy/libvirt-1.1.4-maintain,olafhering/libvirt,cbosdo/libvirt,taget/libvirt,olafhering/libvirt,elmarco/libvirt,rlaager/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,jardasgit/libvirt,zippy2/libvirt,eskultety/libvirt,jfehlig/libvirt,shugaoye/libvirt,eskultety/libvirt,fabianfreyer/libvirt,cbosdo/libvirt,agx/libvirt,cbosdo/libvirt,andreabolognani/libvirt