gsm: workaround for unfinished PPP runtime dir change
issue being worked around: https://github.com/ppp-project/ppp/issues/419
OSs affected: Fedora-39, Fedora-Rawhide
Feel free to revert once not needed anymore.
@os:Fedora-Rawhide
@os:Fedora-39
@RunFeatures:gsm_sim
Edited by David Jaša