forked from Mirrors/opensbi

We should use lower bits for domain memory region access permissions and higher bits for other domain memory region attributes. This helps us use same bit assignment for parsing domain memory region access permissions from device tree. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>