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Build Identifier: 

I can create a container using lxd with a bridged nic just fine. However, if I use a macvlan nic profile, I get an error saying 

```
LXC is missing one or more API extensions: network_ipvlan, network_l2proxy, network_gateway_device_route. 
```

Apparently this is a problem that comes up from having lxd 3.13 without having liblxc 3.1.1. 

https://discuss.linuxcontainers.org/t/lxd-issue-overriding-ipv4-address-from-eth0-profile/4767/7
https://discuss.linuxcontainers.org/t/lxd-issue-overriding-ipv4-address-from-eth0-profile/4767/8

Reproducible: Always

Steps to Reproduce:
1. lxc profile copy default test_profile
2. lxc profile edit test_profile
3. change nictype under an interface (eth0 in my case) to macvlan from bridged
3. lxc launch -p test_profile ubuntu: test
Actual Results:  
I get an error message stating 

```
LXC is missing one or more API extensions: network_ipvlan, network_l2proxy, network_gateway_device_route
```
and no container is created

Expected Results:  
container should be created with the macvlan nic type.