fix(pcie): verify GPU links under real bandwidth load

audit/internal/collector/pcie.go

@@ -353,7 +353,7 @@ func normalizePCILinkSpeed(raw string) string {
 
 // NormalizePCILinkSpeed maps a raw sysfs current_link_speed/max_link_speed
 // string (e.g. "16.0 GT/s PCIe") to a "GenN" label. Exported for reuse by
-// the platform package's PCIe link-retrain SAT, which needs the same
+// the platform package's NVIDIA link-under-load check, which needs the same
 // mapping outside the idle collector path.
 func NormalizePCILinkSpeed(raw string) string {
 	raw = strings.TrimSpace(strings.ToLower(raw))