add component metadata to all CTS module configs

Bug: 36140955
Bug: 35360169
Test: new unit test to ensure that all modules have this field
Change-Id: Id856f93c0d2a018be65bff33459b4b703d23257d
diff --git a/hostsidetests/multiuser/AndroidTest.xml b/hostsidetests/multiuser/AndroidTest.xml
index b6ceb00..27a2073 100644
--- a/hostsidetests/multiuser/AndroidTest.xml
+++ b/hostsidetests/multiuser/AndroidTest.xml
@@ -14,6 +14,7 @@
      limitations under the License.
 -->
 <configuration description="Config for the CTS multiuser host tests">
+    <option name="config-descriptor:metadata" key="component" value="framework" />
     <test class="com.android.compatibility.common.tradefed.testtype.JarHostTest" >
         <option name="jar" value="CtsMultiUserHostTestCases.jar" />
         <option name="runtime-hint" value="8m" />