Update Hcal Gain.xml for Sim10 (2011 MC)
Update Hcal ActiveToTotal parameter (53.05->54) for Sim10 Set L0Corrections to 1.00 as those parameters was actually never set for data taking
This updated Gain.xml condition can be propagated to 2011 and 2010 MC in SimCond, i.e. other (L0)gain parameters are consistent with data taken after before January 2012