TrigMinBias: Fix configuration for Pixel SPs veto chains
This MR fixes configuration for MinBias chains using pixel veto, e.g. HLT_mb_sp_vpix15_hi_FgapAC3_L1RD0_FILLED. Due to the method how SPs counting chains are configured, the minimum number of Pixel and SCT SPs was mistakenly set for vpixNN chains. This MR also adds more debug messages for SPCountingHypoTool.