Revert "Move android.hardware.benchmarks into android.hardware.tests"

This reverts commit c8f7d73720f783532ad0ef243b6593e97e6d5edc.

Change-Id: I957cd686468aa618014a95c0510b162956df9bf7
diff --git a/benchmarks/Android.bp b/benchmarks/Android.bp
new file mode 100644
index 0000000..ab0f308
--- /dev/null
+++ b/benchmarks/Android.bp
@@ -0,0 +1,4 @@
+// This is an autogenerated file, do not edit.
+subdirs = [
+    "msgq/1.0",
+]