npad: Fix copy/paste error with LED position assignments

src/core/hle/service/hid/controllers/npad.h

@@ -80,9 +80,9 @@ public:
     struct LedPattern {
         explicit LedPattern(u64 light1, u64 light2, u64 light3, u64 light4) {
             position1.Assign(light1);
-            position1.Assign(light2);
-            position1.Assign(light3);
-            position1.Assign(light4);
+            position2.Assign(light2);
+            position3.Assign(light3);
+            position4.Assign(light4);
         }
         union {
             u64 raw{};