apparmor-bluez-setup: Fix preconditions and paths

Use the multiple ostree preconditions support introduced in 6b2fd91e
instead of hardcoding the blurb for the second repository.

Also fix the branches and the resulting paths for the unpacked scripts.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

test-cases/apparmor-bluez-setup.yaml

@@ -20,14 +20,11 @@ metadata:
     - "A Bluetooth device."
 
   macro_ostree_preconditions:
-    reponame: apparmor-bluez-setup
-    branch: apertis/v2021dev2
+    - reponame: apparmor-bluez-setup
+      branch: apertis/v2021dev2
+    - reponame: bluez-setup
+      branch: apertis/v2021dev2
   pre-conditions:
-    - "Additionnally, it is necessary to get a copy of bluez-setup test:"
-    - $ cd $HOME
-    - $ wget https://gitlab.apertis.org/tests/bluez-setup/-/archive/master/bluez-setup-master.tar.gz
-    - $ tar -xvf bluez-setup-master.tar.gz
-    - $ scp -r bluez-setup-master user@$DUT_IP:.
     - "Please note that connman disables bluetooth by default on a fresh image.
        If it's already enabled, connmanctl will give an \"In progress\" error that
        may be ignored. To enable the device:"