forked from Mirrors/opensbi

Use the fine grained permission bits to decide if the region permissions are to be enforced on all modes. Also use the new permission bits for deciding on R/W/X bits in pmpcfg register. Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Tested-by: Anup Patel <anup@brainfault.org>