prepo: Stub RequestImmediateTransmission

- Used by Animal Crossing: New Horizons

src/core/hle/service/prepo/prepo.cpp

@@ -25,7 +25,7 @@ public:
             {10103, &PlayReport::SaveReportWithUser<Core::Reporter::PlayReportType::Old2>, "SaveReportWithUserOld2"},
             {10104, &PlayReport::SaveReport<Core::Reporter::PlayReportType::New>, "SaveReport"},
             {10105, &PlayReport::SaveReportWithUser<Core::Reporter::PlayReportType::New>, "SaveReportWithUser"},
-            {10200, nullptr, "RequestImmediateTransmission"},
+            {10200, &PlayReport::RequestImmediateTransmission, "RequestImmediateTransmission"},
             {10300, nullptr, "GetTransmissionStatus"},
             {10400, &PlayReport::GetSystemSessionId, "GetSystemSessionId"},
             {20100, &PlayReport::SaveSystemReport, "SaveSystemReport"},
@@ -108,6 +108,13 @@ private:
         rb.Push(RESULT_SUCCESS);
     }
 
+    void RequestImmediateTransmission(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_PREPO, "(STUBBED) called");
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
     void GetSystemSessionId(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_PREPO, "(STUBBED) called");