wpa-eap wifi network definition does not support phase2-auth

[Netplan Bugger]

Environment:
Ubuntu Server 18.04 on Raspberry Pi 3B+, all packages updated as of 2019-06-20.
netplan.io package version: 0.97-0ubuntu1~18.04.1

Test configuration file:
```
network:
  wifis:
    renderer: NetworkManager
    wlan0:
      access-points:
        "wpa-eap-test":
           auth:
             key-management: eap
             method: peap
             identity: "wpauser"
             password: "SeKr1t"
```

Expected behavior:
"wpa-eap-test" added to connections in NetworkManager.
```
# nmcli c
NAME UUID TYPE DEVICE
netplan-wlan0-wpa-eap-test 225700ef-7dbd-3d6c-8371-31fc990e6c19 wifi --
```

Current behavior:
Althought keyfile for the connection is generated, it is not recognized by NetworkManager.
```
# nmcli c
NAME UUID TYPE DEVICE
```
```
# ls /run/NetworkManager/system-connections/
netplan-wlan0-wpa-eap-test.nmconnection
# cat /run/NetworkManager/system-connections/netplan-wlan0-wpa-eap-test.nmconnection
[connection]
id=netplan-wlan0-wpa-eap-test
type=wifi
interface-name=wlan0

[ethernet]
wake-on-lan=0

[ipv4]
method=link-local

[ipv6]
method=ignore

[wifi]
ssid=wpa-eap-test
mode=infrastructure

[wifi-security]
key-mgmt=wpa-eap

[802-1x]
eap=peap
identity=wpauser
password=SeKr1t
```

Appending `phase2-auth=mschapv2` to [802-1x] section of the keyfile and running `systemctl restart NetworkManager` makes NetworkManager recognizes the connections.

[Phil Dibowitz (jaymzh)]

I've implemented this in https://github.com/CanonicalLtd/netplan/pull/108

[Tuomas Suutari (tuomas-suutari)]

I can confirm that the mentioned PR #108 fixes this issue. Thanks Phil!

[Tuomas Suutari (tuomas-suutari)]

Now that the fix from PR #108 is merged, how soon can we expect it to be packaged to Ubuntu?

Would be great to have this in the LTS, since currently I can't use my company Wifi because of this.