[automerged blank] Implement the protocol to retrieve OOB pseudonym from entitlement server 2p: c55408f45b

Blank merge reason: Change-Id Ie004300607bd88ed6b51cf99ba8d5de734b18c8f with SHA-1 a856239c92 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Wifi/+/21119748

Bug: 239710602
Change-Id: Ia0cf00057d1fcf75037b2b30dfcae77339f213a8
Merged-In: Ie004300607bd88ed6b51cf99ba8d5de734b18c8f