[servod] Add WARN_ONLY_ON_UNKNOWN_ENV variable to servod container

BUG=b:182926038

Change-Id: I116eb44ae3ae42d40b213a2a17f180e2e11f2fd8
1 file changed
tree: 25637ea472e9da9d15674695914f988303f554d8
  1. src/
  2. .gitignore
  3. OWNERS