[ril] Leave extra capabilities as radio cannot set IP address

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
[ril] run ofono as root

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
[ril] Multiple PDP context support for rilmodem

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
[ril] fix merge and some style issues

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
Merge pull request #136 from jpoutiai/next

introducing Multiple PDP support for rilmodem