Commit
4e0525d44a8f8bb80f2c37ea0e75016f101e7a48
by Pau Espin Pedrolpeek_l3_ul_nas: Parse PTMSI MI from GMM RAU req
old_ra param in decode_gmm_tlv() is dropped since it was not really
used, and all callers already parse old_ra in the manual mandatory
parsing step.
Related: OS#6717
Change-Id: I570eb31dcee94a3ebef25e15ac7cd7199ec9a79e