Rename addWrite1/2/4 to addWriteU8/U16/U32

Rename addWrite1/2/4 to addWriteU8/U16/U32 to make the method names
consistent.

Bug: 293811969
Test: TH
Change-Id: Id46bf0e0ccec5828e332947fc74f60f227be24a6
2 files changed