Disable PMTU discovery
Disable PMTU discovery

Fixes https://github.com/scaleway-community/scaleway-docker/issues/30
Addresses https://github.com/docker/docker/pull/18176

Signed-off-by: Manfred Touron <6b0d31c0d563223024da45691584643ac78c96e8@42.am>

scaleway-community/scaleway-docker,scaleway-community/scaleway-docker,scaleway/image-app-docker,meyskens/scaleway-docker