ncurses.inc: add v6 binconfig-disabled entries

Newer host distributions are moving to ncurses6, therefore add entries so the
host's ncurses{w}6-config scripts aren't picked up.

(From OE-Core rev: 0174152272c546dd6cb6bc4b7238c232ab9133b3)

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/binconfig-disabled.bbclass

@@ -15,6 +15,7 @@ do_install_append () {
 		echo "echo 'ERROR: $x should not be used, use an alternative such as pkg-config' >&2" >> ${D}$x
 		echo "echo '--should-not-have-used-$x'" >> ${D}$x
 		echo "exit 1" >> ${D}$x
+		chmod +x ${D}$x
 	done
 }