vendor: patch docker and fsutil pattern matching

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/tonistiigi/fsutil/diskwriter_unixnobsd.go

@@ -0,0 +1,13 @@
+// +build !windows,!freebsd
+
+package fsutil
+
+import (
+	"syscall"
+
+	"github.com/tonistiigi/fsutil/types"
+)
+
+func createSpecialFile(path string, mode uint32, stat *types.Stat) error {
+	return syscall.Mknod(path, mode, int(mkdev(stat.Devmajor, stat.Devminor)))
+}