Move statsd TEST_MAPPINGS to statsd root

Changes in statsd need to trigger the tests, not just changes
to the tests themselves.

Bug: 151868293
Test: presubmit
Change-Id: Ia271c07df52da8c765c683457c63e310282f66e5
2 files changed
tree: 73eb799b200aad216ccf36e935764c9aadcac17f
  1. apex/