Added test to verify activity can turn on screen.

Bug: 29497152
Change-Id: I7a5a380bb3ef2b589fa4ec774cac36f01297af46
diff --git a/hostsidetests/services/activitymanager/app/AndroidManifest.xml b/hostsidetests/services/activitymanager/app/AndroidManifest.xml
index 7ab6e33..d835517 100755
--- a/hostsidetests/services/activitymanager/app/AndroidManifest.xml
+++ b/hostsidetests/services/activitymanager/app/AndroidManifest.xml
@@ -143,6 +143,9 @@
                           android:minHeight="80dp"
                   />
         </activity>
+        <activity android:name=".TurnScreenOnActivity"
+                  android:exported="true"
+        />
     </application>
 </manifest>