trouser: Add DIR_METADATA file

BUG=b:273862205
TEST=None

Change-Id: Ie2f8326807092bf356f06f79f6ba1c4165562190
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/trousers/+/4356978
Reviewed-by: Leo Lai <cylai@google.com>
Tested-by: Yi-An Chen <chenyian@google.com>
Commit-Queue: Yi-An Chen <chenyian@google.com>
1 file changed