forked from Mirrors/opensbi

The latest frozen RPMI spec has added Implementation ID and Implementation Version as message protocol specific mpxy attributes. Add support for these. Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20250618053854.2577299-1-rpathak@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>