PRD: boolean logic error in Axone chnl fail code

Change-Id: I34c98635fb6bc5ac600639474b2a91c7a4a5309c
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/84498
Reviewed-by: Caleb N Palmer <cnpalmer@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Zane C Shelley <zshelle@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/84595
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>

src/usr/diag/prdf/common/plat/mem/prdfMemUtils.C

@@ -1387,7 +1387,7 @@ bool __queryUcsOmic( ExtensibleChip * i_omic, ExtensibleChip * i_mcc,
             uint8_t bitOff = omiPosRelOmic * 20;
 
             // Check if there is a UNIT_CS for the relevant bits in the OMIDLFIR
-            if ( fir->IsBitSet(bitOff)  && ~mask->IsBitSet(bitOff) &&
+            if ( fir->IsBitSet(bitOff)  && !mask->IsBitSet(bitOff) &&
                  act0->IsBitSet(bitOff) &&  act1->IsBitSet(bitOff) )
             {
                 o_activeAttn = true;