cmd/ebitenmobile: Bug fix: Skip 'uinput-fpc' on the joystick detection on Android

Apparently 'uinput-fpc' is a fingerprint reader and is recognized as
a joystick unexpectedly. This was often a primary gamepad on Ebiten
and confused Ebiten applications.

This change fixes this issue by skipping 'uinput-fpc' at the joystick
detection.

Closes #1542

cmd/ebitenmobile/gobind.go

@@ -520,6 +520,12 @@ public class EbitenView extends ViewGroup implements InputManager.InputDeviceLis
         if (inputDevice == null) {
             return;
         }
+
+        // A fingerprint reader is unexpectedly recognized as a joystick. Skip this (#1542).
+        if (inputDevice.getName().equals("uinput-fpc")) {
+            return;
+        }
+
         int sources = inputDevice.getSources();
         if ((sources & InputDevice.SOURCE_GAMEPAD) != InputDevice.SOURCE_GAMEPAD &&
             (sources & InputDevice.SOURCE_JOYSTICK) != InputDevice.SOURCE_JOYSTICK) {