forked from Mirrors/opensbi

The M-mode regions can only be added to the root domain. The non-root domains shouldn't be able to add them from FDT. Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Tested-by: Anup Patel <anup@brainfault.org>