[HDM] Reorganize unit test

Re-organize unit test to clarify:
- Tests of HDM itself
- Tests of a specific chip but which should be run the same way on
  every chip
- Test which are specific to a chip and cannot be run as-is on other
  chips

No actual change to tests.

Bug: 68381183
Test: unit tests pass
Change-Id: Ia164b6b3eca95d48ff59ec31796c9ef71c5c1d3d
1 file changed
tree: 986ac512f116d1b6801736fc78df868ac3566791
  1. service/
  2. PREUPLOAD.cfg