MdeModulePkg: Add Platform recovery support

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Sunny Wang <sunnywang@hpe.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18859 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Include/Library/UefiBootManagerLib.h

@@ -31,6 +31,7 @@ typedef enum {
   LoadOptionTypeDriver,
   LoadOptionTypeSysPrep,
   LoadOptionTypeBoot,
+  LoadOptionTypePlatformRecovery,
   LoadOptionTypeMax
 } EFI_BOOT_MANAGER_LOAD_OPTION_TYPE;