redhat/configs: enable iBFT parsing on aarch64

Chris Leechrequested to merge
cleech/centos-stream-9:cs9-ibft-arm into main

JIRA: https://issues.redhat.com/browse/RHEL-56135 Upstream Status: RHEL only

aarch64 servers are now supporting iSCSI boot with an ACPI iBFT table

Signed-off-by: Chris Leech cleech@redhat.com

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