forked from Mirrors/opensbi

The region access permission check in __fdt_parse_region() can be simplified as masking SBI_DOMAIN_MEMREGION_{M,SU}_ACCESS_MASK is enough. While we are here, update the confusing comments to match the codes. Signed-off-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Anup Patel <anup@brainfault.org>