FatPkg: Add FAT PEIM

Signed-off-by: jljusten
Reviewed-by: mdkinney

(based on FatPkg commit bead7f219277e063ed28589de8ddd01cf180c1a8)

[jordan.l.justen@intel.com: Use script to relicense to 2-clause BSD]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Mark Doran <mark.doran@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>

FatPkg/FatPei/FatLiteApi.h

@@ -0,0 +1,31 @@
+/** @file
+  Definitions for FAT recovery PEIM API functions
+
+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+
+This program and the accompanying materials are licensed and made available
+under the terms and conditions of the BSD License which accompanies this
+distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _FAT_API_H_
+#define _FAT_API_H_
+
+//
+// API data structures
+//
+typedef VOID  *PEI_FILE_HANDLE;
+
+typedef enum {
+  Fat12,
+  Fat16,
+  Fat32,
+  FatUnknown
+} PEI_FAT_TYPE;
+
+#endif