ACPI: add __init to acpi_initialize_subsystem()

Add __init to:
acpi_initialize_subsystem() (and un-export it)
acpi_os_initialize()

Add __initdata to:
acpi_osl_dmi_table[]

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index e9a5780..2d49691 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -61,7 +61,7 @@
  *              called, so any early initialization belongs here.
  *
  ******************************************************************************/
-acpi_status acpi_initialize_subsystem(void)
+acpi_status __init acpi_initialize_subsystem(void)
 {
 	acpi_status status;
 
@@ -108,8 +108,6 @@
 	return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_initialize_subsystem)
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enable_subsystem