[c-nsp] Service Provider Image for NPE-300

[Gregory Boehnlein]

Hello,
	Got a 7206 VXR sitting in the back that I'm working on configuring
for a simple BGP peering setup.. Nothing crazy.. just need to support Vlan
Tagging + BGP for a couple of routes.

Wondering what image people are running.. It currently has
c7200-p-mz.122-46a.bin on it, but wondering if there is a 12.2S that might
be more current and better suited..