Add NetHttpCoverageTests to mainline presubmit

Mainline presubmit runs on older images. So we need to set:
- min_sdk_version to the minimum sdk we support otherwise
it would default to current
- enforce_default_target_sdk_version since mainline needs
all modules to target the latest sdk

Test: presubmit
Bug: 263294440
Change-Id: I20757b13ab9ab45908dae088c6cb6b0bbc51989d
diff --git a/Cronet/tests/mts/Android.bp b/Cronet/tests/mts/Android.bp
index 1cabd63..03d163c 100644
--- a/Cronet/tests/mts/Android.bp
+++ b/Cronet/tests/mts/Android.bp
@@ -20,6 +20,8 @@
 android_library {
     name: "NetHttpTestsLibPreJarJar",
     srcs: [":cronet_aml_javatests_sources"],
+    sdk_version: "test_current",
+    min_sdk_version: "30",
     static_libs: [
         "androidx.test.ext.junit",
         "androidx.test.rules",
@@ -28,7 +30,8 @@
     libs: [
         "android.test.base",
         "framework-tethering-pre-jarjar",
-    ]
+    ],
+    lint: { test: true }
 }
 
 android_test {