Temporarily replace "android.com" accounts.

We're temporarily blocked on internal Gerrit tooling to support
relaxed OWNERS validation, so this change temporarily replaces all
"android.com" accounts with "google.com" equivalents.

Bug: 174932174,175111824
Exempt-From-Owner-Approval: refactoring with team leads buy-in
Change-Id: I114f2a40cee1b65e21250da7372e11c18cd73e25