chore: apply tested fields to pcsx1

Evidence for hle_fallback on scph5501.bin, written by campaign.py with the record ids of measurements/pcsx1.jsonl.

emulators/pcsx1.yml

@@ -36,6 +36,8 @@ files:
     size: 524288
     validation: [size]
     source_ref: "source frontend/libretro.c:1229 (bios[1]), :1181 (size check)"
+    evidence:
+      hle_fallback: ["2026-10-27-cfc47bbfcd02", "2026-10-27-b6d0ce4dfd7e"]
 
   - name: "scph7001.bin"
     description: "SCPH-7001 (v4.1 12-16-97 A)"