Allow registration if the SIM is roaming or partner mode, by adding two
new options to the protocol.
Until now, such registration failed because umbim returns exit codes 4 and
5 for such situations.
Signed-off-by: Julio Gonzalez Gil <git@juliogonzalez.es>
(cherry picked from commit 840ce0a65bbb7ba13a547f90cb94452b290475ef)
b1204ce28c