[RFC] MNCC introduce a hello packet to include a version number

[Holger Hans Peter Freyther]

Hi Jolly, all,

I spent some time figuring out why LCR and OpenBSC wouldn't want to work with
each other. The reason was the addition of an element to the MNCC structure. I
propose to send a hello packet down the MNCC socket and leave it to the client
to decide if the version is acceptable.

I will need to move the mncc header to libosmocore as osmocomBB is currently
using a copy of the OpenBSC header.

comments
	holger