Update simics level to: 2020-05-14_91a405_simics.tar.gz 31a6e039c40e9d17
Update simics level to: 2020-05-14_91a405_simics.tar.gz 31a6e039c40e9d17

Change-Id: I8c9a75bd88fdd177a10b890343648a9c09d80410
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/97058
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@us.ibm.com>
Tested-by: Jenkins Combined Simics CI <8312af3886dfc9bb930f549023677220805b137e@us.ibm.com>
Reviewed-by: Nicholas E Bofferding <fb8db48116bc8a69e29dd8cdb037246f232f4af5@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot