modemmanager: don't flag the 'device' option as 'device' type

Unlike other modem protocol handlers like the ones implemented by uqmi
or umbim, in the modemmanager protocol handler the 'device' option
does not specify a device node in /dev. Therefore, we shouldn't flag
the option as 'device' type (dt_type_device).

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:=6
+PKG_RELEASE:=7
 
 PKG_SOURCE:=ModemManager-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://www.freedesktop.org/software/ModemManager

net/modemmanager/files/modemmanager.proto

@@ -306,7 +306,7 @@ modemmanager_disconnected_method_common() {
 proto_modemmanager_init_config() {
 	available=1
 	no_device=1
-	proto_config_add_string	 "device:device"
+	proto_config_add_string	 device
 	proto_config_add_string	 apn
 	proto_config_add_string	 username
 	proto_config_add_string	 password