[ril] Set gprs cid range when registering gprs driver. Fixes JB#33861

There is no need to wait for the network state status, the network
may already be operational. Without cid range, attempts to activate
connection context will fail with org.ofono.Error.NotImplemented

ofono/drivers/ril/ril_gprs.c

@@ -233,6 +233,12 @@ static gboolean ril_gprs_register(gpointer user_data)
 	gd->registration_status = ril_netreg_check_if_really_roaming(
 		ril_modem_ofono_netreg(gd->md), gd->network->data.status);
 
+	gd->max_cids = gd->network->data.max_calls;
+	if (gd->max_cids > 0) {
+		DBG("Setting max cids to %d", gd->max_cids);
+		ofono_gprs_set_cid_range(gd->gprs, 1, gd->max_cids);
+	}
+
 	ofono_gprs_register(gd->gprs);
 	return FALSE;
 }