Export libtextclassifier

Test: atest -pexternal/libtextclassifier/TEST_MAPPING
Change-Id: I74dd0445ce0ff655933497060b4ce46ee56543c5
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 3c8e10b..cbcd136 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -10,6 +10,9 @@
     },
     {
       "name": "libtextclassifier_tests"
+    },
+    {
+      "name": "libtextclassifier_java_tests"
     }
   ]
 }
\ No newline at end of file