network preflet: Add B_NETWORK_INTERFACE_TYPE_DIAL_UP.

src/preferences/network/InterfaceListItem.cpp

@@ -264,6 +264,9 @@ InterfaceListItem::_UpdateState()
 		case B_NETWORK_INTERFACE_TYPE_ETHERNET:
 			fSubtitle = B_TRANSLATE("Ethernet device");
 			break;
+		case B_NETWORK_INTERFACE_TYPE_DIAL_UP:
+			fSubtitle = B_TRANSLATE("Dial-up connection");
+			break;
 		case B_NETWORK_INTERFACE_TYPE_VPN:
 			fSubtitle = B_TRANSLATE("VPN connection");
 			break;

src/preferences/network/InterfaceListItem.h

@@ -20,6 +20,7 @@
 enum BNetworkInterfaceType {
     B_NETWORK_INTERFACE_TYPE_WIFI = 'wifi',
     B_NETWORK_INTERFACE_TYPE_ETHERNET = 'ethr',
+    B_NETWORK_INTERFACE_TYPE_DIAL_UP = 'dial',
     B_NETWORK_INTERFACE_TYPE_VPN = 'nvpn',
     B_NETWORK_INTERFACE_TYPE_OTHER = 'othe',
 };