lxqt-config: add upstream patch to fix building with qt-5.14

srcpkgs/lxqt-config/patches/qt-5.14.patch

@@ -0,0 +1,21 @@
+From cd7de12f2ebe5a2ad03c2086da4c3b5317a4506e Mon Sep 17 00:00:00 2001
+From: Chih-Hsuan Yen <yan12125@gmail.com>
+Date: Sun, 15 Dec 2019 09:32:55 +0800
+Subject: [PATCH] Fix building with Qt 5.14
+
+---
+ lxqt-config-input/touchpaddevice.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/lxqt-config-input/touchpaddevice.cpp b/lxqt-config-input/touchpaddevice.cpp
+index 31adbe5f..41690c2c 100644
+--- lxqt-config-input/touchpaddevice.cpp
++++ lxqt-config-input/touchpaddevice.cpp
+@@ -21,6 +21,7 @@
+ #include <cmath>
+ #include <QDebug>
+ #include <QX11Info>
++#include <QUrl>
+ #include <libudev.h>
+ #include <LXQt/Settings>
+ #include <X11/Xatom.h>