[hardware] Forward the fault-only-first flag

[flaviens]

Forward fault_only_first into the PE request. The omitted field was zeroed by default: '0, disabling the existing fault-only-first handling added in #380.

Validation: syntax and diff checks; full-core simulation not rerun. Changelog updated.

[Copilot]

🟢 Approval recommended

The change is a minimal, correct wiring fix (explicitly setting a previously omitted struct field) with low regression risk and a matching changelog entry.

Pull request overview

This PR restores correct propagation of the fault_only_first control bit by explicitly forwarding it from the sequencer’s incoming request (ara_req_i) into the processing-element request (pe_req_d), preventing it from being implicitly cleared by the struct literal default: '0.

Changes:

• Forward fault_only_first into the PE request struct initialization in ara_sequencer.sv.
• Document the fix in CHANGELOG.md.

File summaries

File	Description
hardware/src/ara_sequencer.sv	Adds explicit fault_only_first field assignment in the PE request struct literal so it is not zeroed by the default initializer.
CHANGELOG.md	Notes the forwarding fix under “Fixed”.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 0
• Review effort level: Lite

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