tslib: update to 1.18

For the curious, there's the changelog summary:
https://github.com/kergoth/tslib/releases

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Reviewed-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/tslib/tslib.hash

@@ -1,5 +1,5 @@
-# https://github.com/kergoth/tslib/releases/download/1.17/tslib-1.17.tar.xz.sha256
-sha256  9fdd33e66976bf9cc799be33824ba66672f892826e9b22de12b14df15cb0fddc  tslib-1.17.tar.xz
+# https://github.com/kergoth/tslib/releases/download/1.18/tslib-1.18.tar.xz.sha256
+sha256  986cce6d8ed896c0eba68d78acd788c7860ffe8a2165a9f631954e7f2889958b  tslib-1.18.tar.xz
 
 # Locally computed
 sha256  9b872a8a070b8ad329c4bd380fb1bf0000f564c75023ec8e1e6803f15364b9e9  COPYING

package/tslib/tslib.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-TSLIB_VERSION = 1.17
+TSLIB_VERSION = 1.18
 TSLIB_SITE = https://github.com/kergoth/tslib/releases/download/$(TSLIB_VERSION)
 TSLIB_SOURCE = tslib-$(TSLIB_VERSION).tar.xz
 TSLIB_LICENSE = GPL-2.0+ (programs), LGPL-2.1+ (libraries)