[lib] start using SetDeviceTokenWithPlatform

Summary:
ENG-8498.

This is a very small change extracted from other diff: see https://phab.comm.dev/D12939#366162 for context.

Depends on D12939

Test Plan: Repeat test plan from D12939

Reviewers: bartek, inka, tomek

Reviewed By: bartek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D12955