tslib: Fix build with 4.x kernel headers

Fixes
    | ../../tslib-1.21/tools/ts_uinput.c:337:15: error: 'struct input_event' has no member named 'input_event_usec'
    |   337 |    data->ev[c].input_event_usec = s[j][i].tv.tv_usec;
    |       |               ^

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-graphics/tslib/tslib/0001-Fix-build-error-with-input_event_sec-for-old-kernel.patch

@@ -0,0 +1,30 @@
+From 050bf24c16e95f63a76e13156346a072035d45b4 Mon Sep 17 00:00:00 2001
+From: Evan Harvey <evanwork1234@gmail.com>
+Date: Thu, 19 Mar 2020 01:32:03 -0700
+Subject: [PATCH] Fix build error with input_event_sec for old kernel
+
+Upstream-Status: Backport [https://github.com/libts/tslib/commit/050bf24c16e95f63a76e13156346a072035d45b4]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ tools/ts_uinput.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/tools/ts_uinput.c b/tools/ts_uinput.c
+index 1832a07..9c40bb3 100644
+--- a/tools/ts_uinput.c
++++ b/tools/ts_uinput.c
+@@ -51,6 +51,11 @@
+ #include <linux/fb.h>
+ #endif
+
++#ifndef input_event_sec
++#define input_event_sec time.tv_sec
++#define input_event_usec time.tv_usec
++#endif
++
+ #define RESET   "\033[0m"
+ #define RED     "\033[31m"
+ #define GREEN   "\033[32m"
+-- 
+2.26.2
+

meta-oe/recipes-graphics/tslib/tslib_1.21.bb

@@ -15,6 +15,7 @@ LIC_FILES_CHKSUM = "\
 
 SRC_URI = "https://github.com/kergoth/tslib/releases/download/${PV}/tslib-${PV}.tar.xz;downloadfilename=tslib-${PV}.tar.xz \
            file://0001-Fix-build-on-32bit-arches-with-64bit-time_t.patch \
+           file://0001-Fix-build-error-with-input_event_sec-for-old-kernel.patch \
            file://ts.conf \
            file://tslib.sh \
 "