tslib: bump version to 1.2

tslib: bump version to 1.2

* The first patch is removed because the input-raw plugin is now enabled
   in tslib's provided ts.conf

 * The second patch added 2 programs to tslib. The whole patch is removed
   because:
   - ts_finddev is now part of tslib.

   - inputattach is part of the 'Linux console project' located
     here: https://sourceforge.net/projects/linuxconsole/

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>