forked from Mirrors/opensbi

Currently, the root domain memory regions are fixed in generic code but some of the platforms may want to explicitly define memory regions for the root domain. This patch adds optional domains_root_regions() platform callback which platforms can use to provide platform specific root domain memory regions. Due to this changes, the root domain should also undergo all sanity checks (just like regular domain) so we use sbi_domain_register() to register root domain. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>