[c-nsp] Small Issue With next-hop-self for VPNv4

[Piotr Marecki]

This is standard Cisco IOS behavior - RR router won't change NEXT_HOP
attribute during iBGP route reflection - it will only change eBGP reflected
routes. To change NEXT_HOP attribute you have to use outbound route-map
with set ip next-hop.
Moreover , in similiar setup ( though diffrent IOS/Boxes ) i had also to
change MP-BGP NEXT_HOP on PE.

best regards

Piotr Marecki