Adding debuggable attribute to the debug apk.

In user build, readlogs from shell only available for
debuggable/profileable_from_shell apps.

Fixes: 159914355
Test: atest PackageManagerShellCommandIncrementalTest#testInstallSysTrace
Change-Id: I2c8043b1cda640524e8766bb6e24088f0376427f
Merged-In: I2c8043b1cda640524e8766bb6e24088f0376427f
diff --git a/tests/tests/content/HelloWorldApp/AndroidManifest.xml b/tests/tests/content/HelloWorldApp/AndroidManifest.xml
index f7c6c23..f195701 100644
--- a/tests/tests/content/HelloWorldApp/AndroidManifest.xml
+++ b/tests/tests/content/HelloWorldApp/AndroidManifest.xml
@@ -4,6 +4,7 @@
 
     <application
         android:allowBackup="true"
+        android:debuggable="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"