ncurses: Make ncurses-tools depend on ncurses-terminfo-base

Fixed when ncurses-terminfo-base is not installed:
$ infocmp
infocmp: couldn't open terminfo file linux.

The required file is in ncurses-terminfo-base

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>