modemmanager: flag as available and no_device when initializing

Otherwise, if the modem is reseted, netifd will think that the device
is gone forever.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>

net/modemmanager/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=modemmanager
 PKG_VERSION:=1.12.0
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_SOURCE:=ModemManager-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://www.freedesktop.org/software/ModemManager

net/modemmanager/files/modemmanager.proto

@@ -304,6 +304,8 @@ modemmanager_disconnected_method_common() {
 }
 
 proto_modemmanager_init_config() {
+	available=1
+	no_device=1
 	proto_config_add_string	 "device:device"
 	proto_config_add_string	 apn
 	proto_config_add_string	 username