Add a suite tag to ahat unit tests

In order to execute them standalone, add a suite tag for
the ahat unit tests.

Test: None
Bug: 110134825
Change-Id: Ied83e8030ee2e0e4cf0a2dd91ecb125f62f4e650
diff --git a/tools/ahat/AndroidTest.xml b/tools/ahat/AndroidTest.xml
index 867658c..b07905a 100644
--- a/tools/ahat/AndroidTest.xml
+++ b/tools/ahat/AndroidTest.xml
@@ -14,6 +14,8 @@
      limitations under the License.
 -->
 <configuration description="Runs the ahat unit tests">
+    <option name="test-suite-tag" value="ahat" />
+    <option name="test-suite-tag" value="art-tools" />
     <option name="null-device" value="true" />
     <test class="com.android.tradefed.testtype.HostTest" >
         <option name="class" value="com.android.ahat.AhatTestSuite" />