ACPICA: use new ACPI headers.

Signed-off-by: Len Brown <len.brown@intel.com>

arch/ia64/kernel/acpi.c

@@ -617,7 +617,7 @@ EXPORT_SYMBOL(acpi_unregister_gsi);
 static int __init acpi_parse_fadt(unsigned long phys_addr, unsigned long size)
 {
 	struct acpi_table_header *fadt_header;
-	struct fadt_descriptor *fadt;
+	struct acpi_table_fadt *fadt;
 
 	if (!phys_addr || !size)
 		return -EINVAL;
@@ -626,9 +626,9 @@ static int __init acpi_parse_fadt(unsigned long phys_addr, unsigned long size)
 	if (fadt_header->revision != 3)
 		return -ENODEV;	/* Only deal with ACPI 2.0 FADT */
 
-	fadt = (struct fadt_descriptor *)fadt_header;
+	fadt = (struct acpi_table_fadt *)fadt_header;
 
-	acpi_register_gsi(fadt->sci_int, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
+	acpi_register_gsi(fadt->sci_interrupt, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
 	return 0;
 }