PRD: NVDIMM Fix negative temperature check

Change-Id: I389c2e12fe3147add5aa1b3620fb67755f7ef0e3
CQ: SW474740
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/83242
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Benjamen G Tyner <ben.tyner@ibm.com>
Reviewed-by: Paul Greenwood <paul.greenwood@ibm.com>
Reviewed-by: Zane C Shelley <zshelle@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/83243
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>

src/usr/diag/prdf/plat/mem/prdfP9Mca.C

@@ -804,7 +804,7 @@ uint32_t __analyzeErrorThrStatusReg( STEP_CODE_DATA_STRUCT & io_sc,
 
             // Check to see if the ES_TEMP is negative (bit 12)
             bool esTempNeg = false;
-            if ( esTemp | 0x1000 ) esTempNeg = true;
+            if ( esTemp & 0x1000 ) esTempNeg = true;
 
             // If ES_TEMP is equal or above ES_TEMP_ERROR_HIGH_THRESHOLD
             // Just in case ES_TEMP has moved before we read it out, we'll add
@@ -1021,7 +1021,7 @@ uint32_t __analyzeWarningThrStatusReg(STEP_CODE_DATA_STRUCT & io_sc,
 
             // Check to see if the ES_TEMP is negative (bit 12)
             bool esTempNeg = false;
-            if ( esTemp | 0x1000 ) esTempNeg = true;
+            if ( esTemp & 0x1000 ) esTempNeg = true;
 
             // If ES_TEMP is equal or above ES_TEMP_WARNING_HIGH_THRESHOLD
             // Just in case ES_TEMP has moved before we read it out, we'll add