Increase maximum time allowed for screenshot to be taken in test

Test: Ran 'atest GameServiceTest' on cf_x86_64_phone-userdebug
Bug: 228064274
Change-Id: I503de418e369970ffcd115cd84e1d7e91ad958b7
diff --git a/tests/tests/gameservice/src/android/service/games/GameServiceTestService.java b/tests/tests/gameservice/src/android/service/games/GameServiceTestService.java
index 2001aa3..a907340 100644
--- a/tests/tests/gameservice/src/android/service/games/GameServiceTestService.java
+++ b/tests/tests/gameservice/src/android/service/games/GameServiceTestService.java
@@ -48,7 +48,7 @@
  */
 public final class GameServiceTestService extends Service {
 
-    private static final long SCREENSHOT_CALLBACK_TIMEOUT_MS = TimeUnit.SECONDS.toMillis(1);
+    private static final long SCREENSHOT_CALLBACK_TIMEOUT_MS = TimeUnit.SECONDS.toMillis(15);
 
     @Nullable
     private ActivityResult mLastActivityResult;