Commit
dea277718a14811b34a0e126f3353ce9b752a526
by Pau Espin Pedrolmmctx: LOGIUP: allow ue to be NULL
In certain cases, the ue can be NULL.
E.g. when receiving a new Iu event without a context.
Change-Id: Ie569fa100abe518cb63c1b918ad7748a7ea3bb99
(cherry picked from commit 234da0eed4b6e5d372c34dc496677463650f3c97)