ACPICA: Tables: Add acpi_install_table() API for early table installation.

This patch adds a new API - acpi_install_table(). OSPMs can use this API
to install tables during early boot stage.  Lv Zheng.

References: https://lkml.org/lkml/2014/2/28/372
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/acpi/acpixf.h

@@ -164,6 +164,9 @@ acpi_decode_pld_buffer(u8 *in_buffer,
 /*
  * ACPI table load/unload interfaces
  */
+acpi_status __init
+acpi_install_table(acpi_physical_address address, u8 physical);
+
 acpi_status acpi_load_table(struct acpi_table_header *table);
 
 acpi_status acpi_unload_parent_table(acpi_handle object);