RedfishPkg/RedfishHostInterface: Platform Redfish HI notification
    
    For some use cases, Redfish host interface table relies on
    the certain EFI protocols installation at the driver connection.
    Redfish host interface DXE driver is not able to build the
    SMBIOS type 42h record at driver entry point. This patch adds
    the mechanism in Redfish host interface DXE driver to listen
    to EFI protocol installed by platform library that indicates
    the necessary information is ready for building SMBIOS 42h
    record.
    
    Signed-off-by: Abner Chang <abner.chang@amd.com>
    Cc: Nickle Wang <nicklew@nvidia.com>
    Cc: Igor Kulchytskyy <igork@ami.com>
    Reviewed-by: Nickle Wang <nicklew@nvidia.com>