kconfig: fix ncurses headers location

On some distors (eg. latesst openSuSE), the ncurses headers are not
located in the usual location.

Hard-code this location in the kconfig Makefile, as a (temporary?)
workaround.

Reported-by: Simon Gornall <sgornall@apple.com>
[Fix suggested by Simon]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

#!/bin/sh

call_to=@@DEFAULT_LD@@

case "${CTNG_LD_IS}" in

    bfd)    call_to=bfd;;

    gold)   call_to=gold;;

esac

exec "${0}.${call_to}" "$@"

exit $?