update readline to 8.0

Author: facchinm

deps/build_libs.sh

@@ -69,9 +69,8 @@ export NCURSES_DIR=`pwd`
 make
 make install.libs
 
-cd /opt/lib/readline-6.3
+cd /opt/lib/readline-8.0
 export READLINE_DIR=`pwd`
-autoconf
 ./configure --prefix=$PREFIX --disable-shared --host=$CROSS_COMPILE
 make
 make install-static