Feature Request: Apply the same Mac address combobox of Wi-Fi MAC to WAN MAC.

[HubKing]

The Wi-Fi interface already have this feature:

But in Network -> interfaces -> WAN -> Configure, the MAC address field is just a text field.

Why not apply the same combobox with "randomly generated" to this, too?

[Neustradamus]

To follow this ticket

[adelton]

Seems like duplicate of https://github.com/openwrt/luci/issues/5517 (or vice versa).