Make servicestests debuggable

Make servicestests debuggable to help with debugging tests.

Bug: N/A
Test: manual debugging
Change-Id: I628a7687c820f5db52d6f79d64b732b2aa17cb3e
diff --git a/services/tests/servicestests/AndroidManifest.xml b/services/tests/servicestests/AndroidManifest.xml
index 7ae70eb..6551bdeb 100644
--- a/services/tests/servicestests/AndroidManifest.xml
+++ b/services/tests/servicestests/AndroidManifest.xml
@@ -113,7 +113,7 @@
     <uses-sdk android:minSdkVersion="1"
          android:targetSdkVersion="26"/>
 
-    <application android:testOnly="true">
+    <application android:testOnly="true" android:debuggable="true">
         <uses-library android:name="android.test.runner"/>
 
         <service android:name="com.android.server.accounts.TestAccountType1AuthenticatorService"