package/iucode-tool: security bump to version 2.2

package/iucode-tool: security bump to version 2.2

Version 2.1.1 fixed CVE-2017-0357:
https://gitlab.com/iucode-tool/iucode-tool/commit/657ce44ac462bcec35a3e12f9e7f53ca92ae62b7

Dropped IUCODE_TOOL_CONF_ENV after version 2.2 added a configure check
for libargp:
https://gitlab.com/iucode-tool/iucode-tool/commit/b14bed6771e7ab48371b272a0c68dd017767142a

Added hash for license file.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>