[Android] Rename method in AccountUtils

Renames createAndroidAccountFromName() to
createAndroidAccountFromEmail().
This cl doesn't remove the method yet as it's used in internal repo:
https://crrev.com/i/8258363.
The method will be removed in a follow up child cl.

Bug: 40065164
Change-Id: I583717972799aa224c0813f24dd13cccfa8c2cba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6533010
Reviewed-by: Alex Ilin <alexilin@chromium.org>
Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Commit-Queue: Tanmoy Mollik <triploblastic@google.com>
Cr-Commit-Position: refs/heads/main@{#1459429}