deps/Makefile: Update titan.ProtocolEmulations.SCCP ref after osmocom fork rebase

The osmocom git fork containing an extra patch has been rebase to
current upstream master, which now contains a fix for LUDT(S) messages
which will be required in a follow-up patch.

Related: OS#6185
Related: SYS#6566
Change-Id: Id8b7ab652b656841a9b73d40d79077a47f45e735
(cherry picked from commit 43799923231c7a7c7a0df0313a9912b9f92fcd59)
1 file changed