Send the initial number of connected gamepads during launch to fix some games like L4D2

app/src/main/java/com/limelight/Game.java

@@ -294,6 +294,16 @@ public class Game extends Activity implements SurfaceHolder.Callback,
         if (prefConfig.videoFormat == PreferenceConfiguration.FORCE_H265_ON && !decoderRenderer.isHevcSupported()) {
             Toast.makeText(this, "No H.265 decoder found.\nFalling back to H.264.", Toast.LENGTH_LONG).show();
         }
+
+        int gamepadMask = ControllerHandler.getAttachedControllerMask(this);
+        if (!prefConfig.multiController && gamepadMask != 0) {
+            // If any gamepads are present in non-MC mode, set only gamepad 1.
+            gamepadMask = 1;
+        }
+        if (prefConfig.onscreenController) {
+            // If we're using OSC, always set at least gamepad 1.
+            gamepadMask |= 1;
+        }
         
         StreamConfiguration config = new StreamConfiguration.Builder()
                 .setResolution(prefConfig.width, prefConfig.height)
@@ -307,6 +317,7 @@ public class Game extends Activity implements SurfaceHolder.Callback,
                 .setHevcBitratePercentageMultiplier(75)
                 .setHevcSupported(decoderRenderer.isHevcSupported())
                 .setEnableHdr(willStreamHdr)
+                .setAttachedGamepadMask(gamepadMask)
                 .setAudioConfiguration(prefConfig.enable51Surround ?
                         MoonBridge.AUDIO_CONFIGURATION_51_SURROUND :
                         MoonBridge.AUDIO_CONFIGURATION_STEREO)