package/fscryptctl: bump to version 1.2.0

Release notes since v1.0.0:
https://github.com/google/fscryptctl/blob/v1.2.0/NEWS.md#version-120



Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
[Julien: use tag in release notes URL]
Signed-off-by: Julien Olivain <ju.o@free.fr>