Integration: exclude IPVlan test-suite on Windows

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

integration/network/ipvlan/main_test.go

@@ -1,3 +1,5 @@
+// +build !windows
+
 package ipvlan // import "github.com/docker/docker/integration/network/ipvlan"
 
 import (

integration/network/ipvlan/main_windows_test.go

@@ -0,0 +1 @@
+package ipvlan // import "github.com/docker/docker/integration/network/ipvlan"