The samsung target deactivates some options which are activated in the
generic kernel configuration. This looks unnecessary to me, so remove
this. This also fixes build problem found by build bot, for example the
kmod-fs-nfs-v3 was not building, because CONFIG_NETWORK_FILESYSTEMS was
deactivated.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>