PRD: Additional simplification of MemoryMru error log parser code.
PRD: Additional simplification of MemoryMru error log parser code.

Change-Id: Ib263d943c0a217d3674e632c91d16fa594f5b9ec
Backport: release-fips840
CQ: SW329405
Depends-on: I2d245c29ba8e935943d9c7dca0be1346b3277362
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/22445
Tested-by: Jenkins Server
Reviewed-by: Caleb N. Palmer <4dd1938fbd016e66315ec83516544b027a7e47e1@us.ibm.com>
Reviewed-by: BENJAMIN J. WEISENBECK <5c9571551d3c5d31d5a99a7e8d72fcb5684103ff@us.ibm.com>
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>
Reviewed-by: Zane Shelley <fc96e127d170d6ac0b2af86a8a56f95974ff36e8@us.ibm.com>
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/22620
Tested-by: Zane Shelley <fc96e127d170d6ac0b2af86a8a56f95974ff36e8@us.ibm.com>
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/22688
Tested-by: Jenkins OP Build CI
Tested-by: FSP CI Jenkins

open-power/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,open-power/hostboot