Update simics level to: 2021-04-15_2174cf_simics.tar.gz 2174cf9cbded9c93
Update simics level to: 2021-04-15_2174cf_simics.tar.gz 2174cf9cbded9c93

Change-Id: I6d091cd119116463c14af2b3ead2ba46d9faa346
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/114854
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@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