[cpu]linux: handle hz values by tmm1

cpu/cpu_linux.go

@@ -93,6 +93,9 @@ func finishCPUInfo(c *InfoStat) error {
 		return nil
 	}
 	c.Mhz = value / 1000.0 // value is in kHz
+	if c.Mhz > 9999 {
+		c.Mhz = c.Mhz / 1000.0 // value in Hz
+	}
 	return nil
 }