Set the PHFS enabled by default

[popcornylu]

Signed-off-by: popcorny celu@infuseai.io

PR checklist

• [X] Ensure you have added or ran the appropriate tests for your PR.
• [X] DCO signed

What type of PR is this? Feature change

What this PR does / why we need it: Enable PHFS by default.

Which issue(s) this PR fixes: sc-222422

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Yes