BugFix: 500 Server error when upgrade and service restart with data in DB

- return NONE for get effective trust level api if the trustlevel caches
  empty (restart case)

Issue-ID: CPS-2409

Change-Id: I72a755ca6ba5d4a78f5458a235c0d1f43aaa8d53
Signed-off-by: halil.cakal <halil.cakal@est.tech>
2 files changed