Add CtsNetTestCasesLatestSdk to mainline-presubmit

This is the pilot run for mainline testing in Test Mapping Suite.

For supporting mainline testing in Test Mapping Suite, developers can
run tests by configuring the TEST_MAPPING file, the 3 simple steps are:
  - Add tests to be part of general-tests suite if the test does not
    depend on a device specific features.
  - Update test configureation for TradeFed to run mainline testing.
  - Update TEST_MAPPING file with test-group as "mainline-presubmit"

It's only for postsubmit now, and will be moved to actual presubmit
once the whole mechanism is stable.

For more details about the usage, please refer to go/test-mapping-mainline-user-guide

Bug: 160753366
Test: forrest.
Change-Id: I8704cc5626a3e049eb3c27adb86e9c1a4d828273
diff --git a/tests/cts/net/AndroidTestTemplate.xml b/tests/cts/net/AndroidTestTemplate.xml
index 1f75da1..4e93751 100644
--- a/tests/cts/net/AndroidTestTemplate.xml
+++ b/tests/cts/net/AndroidTestTemplate.xml
@@ -19,6 +19,8 @@
     <option name="config-descriptor:metadata" key="parameter" value="instant_app" />
     <option name="config-descriptor:metadata" key="parameter" value="not_multi_abi" />
     <option name="config-descriptor:metadata" key="parameter" value="secondary_user" />
+
+    <option name="config-descriptor:metadata" key="mainline-param" value="CaptivePortalLoginGoogle.apk+NetworkStackGoogle.apk" />
     <option name="not-shardable" value="true" />
     <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
         <option name="cleanup-apks" value="true" />