Fixed secondary screens on KMSDRM (#10535)

* Removed window movement to left top corner that breaks secondary screens on KMSDRM

src/video/kmsdrm/SDL_kmsdrmvideo.c

@@ -1677,7 +1677,9 @@ int KMSDRM_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_Properti
     SDL_SetKeyboardFocus(window);
 
     /* Tell the app that the window has moved to top-left. */
-    SDL_SendWindowEvent(window, SDL_EVENT_WINDOW_MOVED, 0, 0);
+    SDL_Rect display_bounds;
+    SDL_GetDisplayBounds(SDL_GetDisplayForWindow(window), &display_bounds);
+    SDL_SendWindowEvent(window, SDL_EVENT_WINDOW_MOVED, display_bounds.x, display_bounds.y);
 
     /* Allocated windata will be freed in KMSDRM_DestroyWindow,
        and KMSDRM_DestroyWindow() will be called by SDL_CreateWindow()