Arrange the listed SONET alarm type to proper severity

Explanation/Reference:
From SPv3 Dump
Critical
Section Loss of Signal (SLOS)
Section Loss of Frame (SLOF)
Major
Alarm indicates signal-line (LAIS)
Remote defect Indication-line (LRDI)
Minor
Alarm Indicate Signal-Path (PAIS)
Remote defect Indication-path (PRDI)