tree 9d410abbd1ea9208a3b122121b78ac5aaaa89f44
parent 69f4554be96691ee3a9e2fb334af0fb5a33c43f4
author Willy Tu <wltu@google.com> 1665121688 +0000
committer Willy Tu <wltu@google.com> 1665126861 +0000

Move InterfaceList back to set

There are duplicated entries in InterfaceList and causing dbus object
creation failures for
- /xyz/openbmc_project/network/config
- /xyz/openbmc_project/network/config/dhcp

Example Failure,
```
$ /tmp/phosphor-network-manager &
[1] 23394
$ busctl tree xyz.openbmc_project.Network
`-/xyz
  `-/xyz/openbmc_project
    `-/xyz/openbmc_project/network
$ sdeventplus: timeCallback: sd_bus_add_object_vtable: org.freedesktop.DBus.Error.FileExists: File exists
busctl tree xyz.openbmc_project.Network
`-/xyz
  `-/xyz/openbmc_project
    `-/xyz/openbmc_project/network
      |-/xyz/openbmc_project/network/dummy0
      | |-/xyz/openbmc_project/network/dummy0/ipv4
...
```

Tested:
The object is created with no error now.

Signed-off-by: Willy Tu <wltu@google.com>
Change-Id: Iaf91ceee118a4bd32ec8277e0c1372ccab1cb9d9