[rilmodem] Request network gprs state always when network state changes

Status needs to be always also asked regardless of the core attached
state. Otherwise temporary loss of the connection requires connman
API client to re-establish the connection regardless of the actual
modem state

Signed-off-by: Jussi Kangas <jussi.kangas@oss.tieto.com>
Merge pull request #71 from jkangas/master

Request for pulling the gprs state query in all network state change situations to main branch
[rilmodem] Fix oFono compiler warnings

Fix oFono compiler warnings as an enabler for
Definition-of-Done

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
Merge branch 'warnings'
Merge pull request #72 from ptakalok/master

Fix oFono compiler warnings