IPU:add stream installation way for leapp tool

ID:2634

Signed-off-by: Miriam Deng <mdeng@redhat.com>

qemu/tests/cfg/in_place_upgrade.cfg

@@ -53,6 +53,8 @@
         - compose_install:
             com_install = "yes"
             com_ins_leapp = "yum install leapp-upgrade -y"
+        - stream_install:
+            # Please modify the build in the internal cfg
         - upstream_install:
             com_install = "no"
     variants: