Enable reboot to fastbootd if TW_INCLUDE_FASTBOOTD is set

Change-Id: I599841d7dab28c51700e9c5f445654263edf3336
(cherry picked from commit 97be4321d42d1efa01a981e25c686c19f037fb5a)
diff --git a/Android.mk b/Android.mk
index 0d2708d..a060351 100755
--- a/Android.mk
+++ b/Android.mk
@@ -411,6 +411,9 @@
 ifneq ($(TW_BACKUP_EXCLUSIONS),)
 	LOCAL_CFLAGS += -DTW_BACKUP_EXCLUSIONS='"$(TW_BACKUP_EXCLUSIONS)"'
 endif
+ifeq ($(TW_INCLUDE_FASTBOOTD), true)
+    LOCAL_CFLAGS += -DTW_INCLUDE_FASTBOOTD
+endif
 
 LOCAL_C_INCLUDES += system/vold \