openpli distro: fix opkg and hotplug providers
openpli distro: fix opkg and hotplug providers

opkg-nogpg no longer exists, and we want to use
mdev instead of udev, as hotplug provider

BlackPole/bp-openembedded,BlackPole/bp-openembedded,openpli-arm/openembedded,SIFTeam/openembedded,nx111/openembeded_openpli2.1_nx111,openpli-arm/openembedded,openpli-arm/openembedded,BlackPole/bp-openembedded,BlackPole/bp-openembedded,openpli-arm/openembedded,SIFTeam/openembedded,nx111/openembeded_openpli2.1_nx111,BlackPole/bp-openembedded,openpli-arm/openembedded,nx111/openembeded_openpli2.1_nx111,nx111/openembeded_openpli2.1_nx111,libo/openembedded,nx111/openembeded_openpli2.1_nx111,SIFTeam/openembedded,BlackPole/bp-openembedded,SIFTeam/openembedded,nx111/openembeded_openpli2.1_nx111,libo/openembedded,SIFTeam/openembedded,openpli-arm/openembedded,libo/openembedded,libo/openembedded,SIFTeam/openembedded,libo/openembedded,openpli-arm/openembedded,nx111/openembeded_openpli2.1_nx111,nx111/openembeded_openpli2.1_nx111,libo/openembedded,BlackPole/bp-openembedded,SIFTeam/openembedded,libo/openembedded