zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/busybox/src/testsuite/dd/dd-copies-from-standard-input-to-standard-output b/ap/app/busybox/src/testsuite/dd/dd-copies-from-standard-input-to-standard-output
new file mode 100644
index 0000000..d890eb0
--- /dev/null
+++ b/ap/app/busybox/src/testsuite/dd/dd-copies-from-standard-input-to-standard-output
@@ -0,0 +1 @@
+test "$(echo I WANT | busybox dd 2>/dev/null)" = "I WANT"