oobe: Add raleksandrov@google.com to owners.

Change-Id: I4d055320f6d410de25944c336da3486899479b64
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2643331Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Reviewed-by: Denis Kuznetsov [CET] <antrim@chromium.org>
Commit-Queue: Roman Aleksandrov <raleksandrov@google.com>
Cr-Commit-Position: refs/heads/master@{#846207}

chrome/browser/resources/chromeos/login/OWNERS

@@ -6,5 +6,6 @@ tbarzic@chromium.org
 # (in CET)
 antrim@chromium.org
 rsorokin@chromium.org
+raleksandrov@google.com
 
 per-file *security_token*=emaxx@chromium.org