Add support for tests to declare runtime hints.

bug:21762834
Change-Id: I11f3e6ecb026dcbbb8c73c750c7a70d8a15d81fb
diff --git a/hostsidetests/devicepolicy/AndroidTest.xml b/hostsidetests/devicepolicy/AndroidTest.xml
index dd3444f..48b3b5b 100644
--- a/hostsidetests/devicepolicy/AndroidTest.xml
+++ b/hostsidetests/devicepolicy/AndroidTest.xml
@@ -16,5 +16,6 @@
 <configuration description="Config for the CTS Device Policy host tests">
     <test class="com.android.compatibility.common.tradefed.testtype.JarHostTest" >
         <option name="jar" value="CtsDevicePolicyManagerTestCases.jar" />
+        <option name="runtime-hint" value="31m41s" />
     </test>
 </configuration>