Refactor clock resource ids

This intends to remove as many instances of resource lookups by name
as possible in the custom clocks and related code. These have been a
source of bugs, and by creating a common lib, we can directly share
resources to every context where they are needed.

Bug: 364680879
Test: Checked rebuilt plugins
Flag: NONE API & Build config change
Change-Id: Ib12e9cd05d0688e241bbf361a6408f9f2f23c202