Commit
58a526c64e169af4f5635b175a40066594d660d9
by lynxisSGSN: f_TC_cell_change_different_*: always expect the auth
The new SGSN will always ask for authentication when receiving Attach or RA
which is the correct behaviour as long the LLC layer doesn't indicate
integrity or encryption protection.
Change-Id: I24579b5fc843caf68e035e106cee4e4ec0a3c735