winex11.drv: Make several constants static.

dlls/winex11.drv/wintab.c

@@ -485,9 +485,9 @@ static void disable_system_cursors(void)
  */
 BOOL CDECL X11DRV_LoadTabletInfo(HWND hwnddefault)
 {
-    const WCHAR SZ_CONTEXT_NAME[] = {'W','i','n','e',' ','T','a','b','l','e','t',' ','C','o','n','t','e','x','t',0};
-    const WCHAR SZ_DEVICE_NAME[] = {'W','i','n','e',' ','T','a','b','l','e','t',' ','D','e','v','i','c','e',0};
-    const WCHAR SZ_NON_PLUGINPLAY[] = {'n','o','n','-','p','l','u','g','i','n','p','l','a','y',0};
+    static const WCHAR SZ_CONTEXT_NAME[] = {'W','i','n','e',' ','T','a','b','l','e','t',' ','C','o','n','t','e','x','t',0};
+    static const WCHAR SZ_DEVICE_NAME[] = {'W','i','n','e',' ','T','a','b','l','e','t',' ','D','e','v','i','c','e',0};
+    static const WCHAR SZ_NON_PLUGINPLAY[] = {'n','o','n','-','p','l','u','g','i','n','p','l','a','y',0};
 
     struct x11drv_thread_data *data = x11drv_init_thread_data();
     int num_devices;