Add check for touch -h to configure.ac

Change-Id: I53c452dac9cef64fce9a3e7e28956efe95fc4c24
Reviewed-on: https://gerrit.libreoffice.org/7046
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Tested-by: Norbert Thiebaud <nthiebaud@gmail.com>