util-linux: Add --without-ncurses to host-util-linux

Ncurses not necessary when building host-util-linux, so passing
--without-ncurses avoids from misdetecting an installed host ncurses
on the build machine.

[Thomas: improve commit message]
Signed-off-by: Olivier Schonken <olivier.schonken@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>