Extend expiry date of LECredential histograms

Bug: 945564,945565,945566,945567,945568,945570
Test: None
Change-Id: I49a379e125084600b85cc721d0bfaac27b1d8417
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574361
Reviewed-by: Steven Holte <holte@chromium.org>
Commit-Queue: Prashant Malani <pmalani@chromium.org>
Auto-Submit: Prashant Malani <pmalani@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652634}
1 file changed