samba4: move x86_64 answer cache file

The x86_64 answer cache file from commit
d191d40e was intended for a previous
draft version of the samba4 package that resided in a different
directory.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>