Use SIWG display name in single and multiple credential screens

https://hsv.googleplex.com/6128614297829376
https://hsv.googleplex.com/4768216021729280

Flag: EXEMPT bugfix
Bug:355488245, 356049400, 355437670
Test: CredentialSelectorUiStateGetMapperTest
Change-Id: Ib51f95208b2a0a8550b7ff5d11540ec467b5d7f0
5 files changed