[Cronet] Add test jni lib

This contains the test specific native classes

Test: atest NetHttpCoverageTest
Bug: 267353182
Change-Id: I2ce745418225c35e5b96e477334990a16be7246d
diff --git a/Cronet/tests/mts/Android.bp b/Cronet/tests/mts/Android.bp
index ac71653..e2cae41 100644
--- a/Cronet/tests/mts/Android.bp
+++ b/Cronet/tests/mts/Android.bp
@@ -40,9 +40,11 @@
         "CronetTestJavaDefaults",
         "mts-target-sdk-version-current",
      ],
-     sdk_version: "test_current",
      static_libs: ["NetHttpTestsLibPreJarJar"],
      jarjar_rules: ":framework-tethering-jarjar-rules",
+     jni_libs: [
+        "//external/cronet:cronet_aml_components_cronet_android_cronet_tests__testing"
+     ],
      test_suites: [
          "general-tests",
          "mts-tethering",