winex11: Fix int/long type mismatches.

dlls/winex11.drv/display.c

@@ -550,7 +550,7 @@ BOOL X11DRV_UpdateDisplayDevices( const struct gdi_device_manager *device_manage
     INT gpu_count, adapter_count, monitor_count;
     INT gpu, adapter, monitor;
     DEVMODEW *modes, *mode;
-    DWORD mode_count;
+    UINT mode_count;
 
     if (!force && !force_display_devices_refresh) return TRUE;
     force_display_devices_refresh = FALSE;

dlls/winex11.drv/window.c

@@ -182,7 +182,7 @@ HWND *build_hwnd_list(void)
 {
     NTSTATUS status;
     HWND *list;
-    UINT count = 128;
+    ULONG count = 128;
 
     for (;;)
     {

dlls/winex11.drv/x11drv_main.c

@@ -1150,7 +1150,7 @@ NTSTATUS CDECL X11DRV_D3DKMTOpenAdapterFromLuid( D3DKMT_OPENADAPTERFROMLUID *des
     VkPhysicalDevice *vk_physical_devices = NULL;
     VkPhysicalDeviceProperties2 properties2;
     NTSTATUS status = STATUS_UNSUCCESSFUL;
-    DWORD device_count, device_idx = 0;
+    UINT device_count, device_idx = 0;
     struct x11_d3dkmt_adapter *adapter;
     VkInstanceCreateInfo create_info;
     VkPhysicalDeviceIDProperties id;