[coreboot] smi handler support for fsp baytrail

Hi all,

What about the smi support for fsp baytrail?When I select HAVE_SMI_HANDLER for fsp baytrail,it will halt at:
    ERROR: Could not find FSP HOB pointer in CBFS! 
    POST: 0x79 
    POST: 0x9c 
    ACPI: Writing ACPI tables at f0000. 
    ACPI: * FACS @ 000f0210 Length 40ACPI: * DSDT @ 000f0250 Length 2a89SCI is IRQ9 
    ACPI: added table 1/32, length now 40 
    ACPI: * FADT @ 000f2ce0 Length f4ACPI: added table 2/32, length now 44 
    ACPI: * HPET @ 000f2de0 Length 38 
    ACPI: added table 3/32, length now 48 
    ACPI: * MADT @ 000f2e20 Length 6c 
    ACPI: added table 4/32, length now 52 
    ACPI: * MCFG @ 000f2e90 Length 3c 
    ACPI: Could not find CBMEM GNVS 
    ACPI: Patching up global NVS in DSDT at offset 0x009f -> 000f2ed0

Thanks,
Tank