Fixed the exception "Underlying logger is not initialized"

This cause is that TelephonyMetricLogger.for_test_case is a class
method and should be called in the test class.

Bug: 196511099
Test: Yes, locally
Change-Id: Id4aa0455a83b5ad8376ca8769335a738f8b09188
7 files changed
tree: e5846fb53800a85b6155c6eb08dd8736bb9e7e67
  1. acts/
  2. acts_tests/
  3. tools/
  4. wts-acts/
  5. Android.mk
  6. OWNERS
  7. PREUPLOAD.cfg