Add connectivity coverage tests

The coverage tests will allow measuring code coverage for all
Connectivity+Tethering code.

This is a combination of the current TetheringCoverageTests, and
FrameworksNetTests.

Adding min_sdk_version to the test prevents it from using deprecated
IoUtils utilities. Replace it with the non-deprecated alternative.

Bug: 187935317
Test: atest ConnectivityCoverageTests
Original-Change: https://android-review.googlesource.com/1731232
Merged-In: I5366e1cc9cd6ddb41f24718246381cc2b1cc1383
Change-Id: I5366e1cc9cd6ddb41f24718246381cc2b1cc1383

tests/common/AndroidTest_Coverage.xml

@@ -0,0 +1,27 @@
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs coverage tests for Connectivity">
+    <target_preparer class="com.android.tradefed.targetprep.TestAppInstallSetup">
+        <option name="test-file-name" value="ConnectivityCoverageTests.apk" />
+    </target_preparer>
+
+    <option name="test-tag" value="ConnectivityCoverageTests" />
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.connectivity.tests.coverage" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+        <option name="hidden-api-checks" value="false"/>
+        <option name="device-listeners" value="com.android.modules.utils.testing.NativeCoverageHackInstrumentationListener" />
+    </test>
+</configuration>