[gprs-provision PATCHv7 0/5] Plugin API for provisioning of GPRS context settings

Hello And again a patchset about automatic provisioning of GPRS context settings. Since the safe reading of EF-SPN turned out to be impossible until general solution is implemented, I must temporary give up my insistence on it. So the following provisioning driver API must be considered as provisional. When proper solution for SPN comes up, we should redesign the API. Without SPN, correct settings cannot be provisioned for all service providers, but at least for now most cases should work with just the MCC and MNC values provided with this API. --Jukka