Always create the check histogram ConfigConsistency_HLT [ATR-24420]

As discovered in ATR-24302 the important cross-check histogram ConfigConsistency_HLT does not get created when no inconsistencies are found. This is not the desired behaviour and this change makes sure the histogram is always created. It will be empty if all is OK.

This fixes ATR-24420.

Trigger/TrigMonitoring/TrigHLTMonitoring/python/TrigGeneralMonitorAlgorithm.py

@@ -104,7 +104,7 @@ def TrigGeneralMonConfig(inputFlags):
 
     consistency_names=['SMK DB NULL','SMK BS NULL','SMK Inconsistent','HLT Prescale DB NULL','HLT Prescale BS NULL','HLT Prescale Inconsistent','No onlineKeys','No eventKeys']
     hltGroup.defineHistogram('ConfigConsistency_HLT', title='ConfigConsistency_HLT;;Events',
-                             path='',xbins=8,xmin=1,xmax=9,xlabels=consistency_names)
+                             path='',xbins=8,xmin=1,xmax=9,xlabels=consistency_names,opt='kAlwaysCreate')
 
  
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