move mncc.adoc to common chapters

Upcoming OsmoMSC will reference the same, hence MNCC becomes a common chapter.

Move the file and adjust various wording to include OsmoMSC.

Change-Id: I404758ff7f1372e841ffe33c75455f513fff3caf
2 files changed
tree: 3625c4d66ad10b3a6cfa8dfd182a393fd7746cd5
  1. doc/