mm-bearer-qmi: Add udev tag to disable PCO
Requesting the operator reserved PCO will cause the Qualcomm based MPL200 to crash every 200s. New Cellient plugin includes udev rule for MPL200 that defines a new udev tag ID_MM_QMI_PCO_DISABLED to disable the PCO settings request, indirectly disabling PCO.
Fixes #842 (closed) and #884 (closed)
Edited by Stig M. Baugstø