PRD: fix address registers for fetch ECC errors

Change-Id: I6d71b3dbe157f984564095ebc10b301a6d61b308
CQ: SW428436
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/58651
Reviewed-by: Benjamin J. Weisenbeck <bweisenb@us.ibm.com>
Reviewed-by: Caleb N. Palmer <cnpalmer@us.ibm.com>
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Reviewed-by: Brian J. Stegmiller <bjs@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://ralgit01.raleigh.ibm.com/gerrit1/58662
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/prdfMemAddress.C

@@ -178,7 +178,7 @@ uint32_t getMemReadAddr<TYPE_MEMBUF>( ExtensibleChip * i_chip, uint32_t i_pos,
     }
 
     char reg_str[64];
-    sprintf( reg_str, "MCB%d_%s", i_pos, tmp );
+    sprintf( reg_str, "MBA%d_%s", i_pos, tmp );
 
     // Read the address register
     SCAN_COMM_REGISTER_CLASS * reg = i_chip->getRegister( reg_str );