fixed more backlog issues

SOL002/VNFFaultManagement-API/EscalatePerceivedSeverityTask.robot

@@ -50,7 +50,7 @@ PATCH Escalate the perceived severity - Method not implemented
     ...    Config ID: Config_prod_VNFM
     ...    Applicability: 
     ...    Post-Conditions:   
-    Put escalate severity
+    PATCH escalate severity
     Check HTTP Response Status Code Is    405
     
     

SOL002/VNFFaultManagement-API/IndividualAlarm.robot

@@ -63,7 +63,7 @@ PATCH Alarm
     ...    Config ID: Config_prod_VNFM
     ...    Applicability: 
     ...    Post-Conditions: none
-    PUT Alarm Task
+    PATCH Alarm Task
     Check HTTP Response Status Code Is    200
     Check HTTP Response Body Json Schema Is     alarmModifications