Added `not_multi_abi` configuration for keystore2_client_tests module.

Changes made to avoid running keystore2_client_tests of armeabi-v7a
builds on arm64-v8a platforms.

Bug: 322112515
Test: run vts -m keystore2_client_tests
Change-Id: Ic7205ecc80146cdd36b1a618c9c5cde114b98e71
diff --git a/keystore2/tests/AndroidTest.xml b/keystore2/tests/AndroidTest.xml
index 7db36f7..dde18a9 100644
--- a/keystore2/tests/AndroidTest.xml
+++ b/keystore2/tests/AndroidTest.xml
@@ -14,6 +14,7 @@
      limitations under the License.
 -->
 <configuration description="Config to run keystore2_client_tests device tests.">
+    <option name="config-descriptor:metadata" key="parameter" value="not_multi_abi" />
 
     <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
     </target_preparer>