added duf and nginx and some refactor

scripts/wpa_supplicant.sh

@@ -22,8 +22,6 @@ build_wpa_supplicant() {
     PKG_CONFIG_PATH=/opt/toolchains/$CROSS_COMPILE/$CROSS_COMPILE/sysroot/usr/lib/pkgconfig \
     make ${makeflags} BINDIR=/usr/bin LIBDIR=/usr/lib
     check $? "Build ${pkgname}"
-    # ${CROSS_COMPILE}-strip wpa_cli wpa_passphrase wpa_supplicant
-    # check $? "Stripping ${pkgname} binary"
     cp -v wpa_cli wpa_passphrase wpa_supplicant $rootfspath/usr/bin/
     check $? "Install to rootfs ${pkgname}"
 }