Merge AOSP android-9.0.0_r3

Fix conflicts and make it build in 5.1, 6.0, 7.1, 8.1, and 9.0

Change-Id: Ida0a64c29ff27d339b7f42a18d820930964ac6e4
diff --git a/otautil/ZipUtil.cpp b/otautil/ZipUtil.cpp
index 714c956..a2d0cba 100644
--- a/otautil/ZipUtil.cpp
+++ b/otautil/ZipUtil.cpp
@@ -28,7 +28,7 @@
 #include <selinux/selinux.h>
 #include <ziparchive/zip_archive.h>
 
-#include "DirUtil.h"
+#include "otautil/DirUtil.h"
 
 static constexpr mode_t UNZIP_DIRMODE = 0755;
 static constexpr mode_t UNZIP_FILEMODE = 0644;