nfc(api): Mark some data types as formal API for mainline

These will be part of the platform (not part of NFC module) and will be
used by NFC stack to parse platform resource files to form these
structs.

Bug: 263563565
Test: Compiles
(cherry picked from https://android-review.googlesource.com/q/commit:51c5d5ede5c85823fdd127fddc67d56da0defed0)
Merged-In: Ib1f22395567386a6e802d78b6fe359f92c3847d7

Change-Id: Ib1f22395567386a6e802d78b6fe359f92c3847d7