Update to AOSP 8.0 base

Change-Id: I29fe722b4eb9718765327902779046840a01433e
diff --git a/adb_install.h b/adb_install.h
index 24e9e21..e9e88f7 100644
--- a/adb_install.h
+++ b/adb_install.h
@@ -19,8 +19,8 @@
 
 //class RecoveryUI;
 
-void set_usb_driver(bool enabled);
-void maybe_restart_adbd();
+static void set_usb_driver(bool enabled);
+static void maybe_restart_adbd();
 int apply_from_adb(const char* install_file, pid_t* child_pid);
 
 #endif