[FS#270] The interfaces doesn't show ip addresses for tun interfaces linked to OpenVPN

[LEDE Bugs]

The following task is now closed:

FS#270 - The interfaces doesn't show ip addresses for tun interfaces linked to OpenVPN
User who did this - Mathias Kresin (mkresin)

Reason for closing: Different project
More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=270