recovery: Add fast factory boot mode (FFBM) read

FFBM is needed to start the system in native Android to shorten boot time
in case of factory testing. FFBM mode representation is string of the type
"ffbm-xx" where xx is number that denotes the FFBM submode.
LK reads that string from the misc partition

Change-Id: I1f93a7c60aa60493c4a277dc4979ebb5120b57b7
diff --git a/app/aboot/recovery.h b/app/aboot/recovery.h
index 6037213..ac291fa 100644
--- a/app/aboot/recovery.h
+++ b/app/aboot/recovery.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2010, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
 
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -72,6 +72,8 @@
 
 int recovery_init (void);
 
+bool get_ffbm(char *ffbm, unsigned size);
+
 extern unsigned boot_into_recovery;
 
 #endif