package_config/{ALIP, DEVELOPER}: Only install obex{ftp,pushd} on stretch

Recently the obex{ftp, pushd} packages was remove from buster and breaks
the builds.

[1] https://tracker.debian.org/pkg/obexpushd

Change-Id: Ib58ddca6c8f3fec80efcf2c5ce7ffe02d4306c4d
Signed-off-by: Aníbal Limón <anibal.limon@linaro.org>
diff --git a/package_config/ALIP b/package_config/ALIP
index bb11539..66642c8 100644
--- a/package_config/ALIP
+++ b/package_config/ALIP
@@ -77,8 +77,6 @@
 mesa-utils-extra
 modemmanager
 network-manager-gnome
-obexftp
-obexpushd
 pavucontrol-qt
 pcmanfm-qt
 phonon4qt5-backend-gstreamer
@@ -115,6 +113,10 @@
 wireless-tools
 zip
 
+PACKAGES install-norec STRETCH
+obexftp
+obexpushd
+
 PACKAGES install-norec
 bluedevil
 breeze
diff --git a/package_config/DEVELOPER b/package_config/DEVELOPER
index 13ef4a1..a49ed23 100644
--- a/package_config/DEVELOPER
+++ b/package_config/DEVELOPER
@@ -25,8 +25,6 @@
 lm-sensors
 lsof
 netcat-openbsd
-obexftp
-obexpushd
 parted
 powerdebug
 powertop
@@ -44,3 +42,7 @@
 wireless-tools
 wpasupplicant
 zip
+
+PACKAGES install-norec STRETCH
+obexftp
+obexpushd