Add metrics category for dialog of system locale change.

Bug: b/243511340
Test: Manual test passed
Test: Make passed
Change-Id: I938e69bd75f4c79e6b978e23630deb1b0bed4a46
1 file changed
tree: 659bad1563418dea68ddb686a608f2e2e587e2a8
  1. stats/
  2. OWNERS