Update TWRP to AOSP 7.1.2

Change-Id: I19c1546efb4182aac62c690e3cc05b04e3a9a32e
diff --git a/twrp.cpp b/twrp.cpp
index 977fea2..6fd8f24 100644
--- a/twrp.cpp
+++ b/twrp.cpp
@@ -49,7 +49,7 @@
 #include "adb.h"
 #else
 extern "C" {
-#include "minadbd.old/adb.h"
+#include "minadbd21/adb.h"
 }
 #endif