Add metadata to modules in system/libfmq

Add metadata. key="plan"; value="vts-library".

Test: vts-tradefed run commandAndExit vts-library --include-filter VtsFmqUnitTests
Bug: 70485967

Change-Id: I7e2a277180344695a6e285530da900b387648466
diff --git a/tests/AndroidTest.xml b/tests/AndroidTest.xml
index 70df24d..0609960 100644
--- a/tests/AndroidTest.xml
+++ b/tests/AndroidTest.xml
@@ -14,6 +14,7 @@
      limitations under the License.
 -->
 <configuration description="Config for VTS FMQ unit tests">
+    <option name="config-descriptor:metadata" key="plan" value="vts-library" />
     <target_preparer class="com.android.compatibility.common.tradefed.targetprep.VtsFilePusher">
         <option name="push-group" value="HostDrivenTest.push" />
         <option name="cleanup" value="true" />