Fix a few annotation nits from ag/27086435

This cl just fixes a few annotation-related nits from
Icaf26c17de32aaf63b985d69dd6902b1112a4a75.

Test: N/A (just annotation changes)
Flag: ACONFIG android.multiuser.enable_private_space_features NEXTFOOD
Bug: 329551064
Change-Id: I376b332c79634a64f4a6bdeb88ace1250412f218
3 files changed