Add WifiPreparer to drm tests to confirm wifi connection

The tests require wifi connectivity.

Bug: 156266690
Test: none
Change-Id: Ib5116d62265241938f9292956b3c4829da7b425e
diff --git a/drm/1.1/vts/functional/AndroidTest.xml b/drm/1.1/vts/functional/AndroidTest.xml
index 65c45ac..24eeb72 100644
--- a/drm/1.1/vts/functional/AndroidTest.xml
+++ b/drm/1.1/vts/functional/AndroidTest.xml
@@ -19,6 +19,10 @@
 
     <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
 
+    <target_preparer class="com.android.tradefed.targetprep.WifiPreparer" >
+        <option name="verify-only" value="true" />
+    </target_preparer>
+
     <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
         <option name="cleanup" value="true" />
         <option name="push-file" key="VtsHalDrmV1_1TargetTest" value="/data/local/tmp/VtsHalDrmV1_1TargetTest" />
diff --git a/drm/1.2/vts/functional/AndroidTest.xml b/drm/1.2/vts/functional/AndroidTest.xml
index 5da38ae..3285c37 100644
--- a/drm/1.2/vts/functional/AndroidTest.xml
+++ b/drm/1.2/vts/functional/AndroidTest.xml
@@ -19,6 +19,10 @@
 
     <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
 
+    <target_preparer class="com.android.tradefed.targetprep.WifiPreparer" >
+        <option name="verify-only" value="true" />
+    </target_preparer>
+
     <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
         <option name="cleanup" value="true" />
         <option name="push-file" key="VtsHalDrmV1_2TargetTest" value="/data/local/tmp/VtsHalDrmV1_2TargetTest" />
diff --git a/drm/1.3/vts/functional/AndroidTest.xml b/drm/1.3/vts/functional/AndroidTest.xml
index 338430f..9cc8e0c 100644
--- a/drm/1.3/vts/functional/AndroidTest.xml
+++ b/drm/1.3/vts/functional/AndroidTest.xml
@@ -19,6 +19,10 @@
 
     <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
 
+    <target_preparer class="com.android.tradefed.targetprep.WifiPreparer" >
+        <option name="verify-only" value="true" />
+    </target_preparer>
+
     <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
         <option name="cleanup" value="true" />
         <option name="push-file" key="VtsHalDrmV1_3TargetTest" value="/data/local/tmp/VtsHalDrmV1_3TargetTest" />