ncurses_6: Fix an install race condition

ncurses_6: Fix an install race condition

Both targets install.libs and install.includes install the same
files, resulting in a race condition when running parallel make.
This race is addressed in a patch file, making sure only one
of the targets (install.includes) installes the include files.
This will work properly (i.e.ncurses will install as intended
by the recipe) as long as we always install both targets.

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>