Add logging enums for first dock

This will log:
1. State changes for the entire first dock flow (when it is started,
   snoozed, and cancelled)
2. The result codes for each step in the flow, to log if a step was
   skipped or completed.

Bug: 238435129
Test: locally on device
Change-Id: Ia383093f13da1a2a717003b384ebc780b84c96fd
(cherry picked from commit df0b9ac14c3edb28b9f6d2ba4537e7b7746493c7)
Merged-In: Ia383093f13da1a2a717003b384ebc780b84c96fd