sstate: Add packagedata to list of tasks not to recurse

If we "bitbake X -c packagedata" and the packagedata comes from sstate, we
don't need any of the tasks dependencies. This is similar to the
populate_lic case, we only care about the end result.

Therefore short circuit the dependencies so packagedata doesn't pull in
any other dependencies.

(From OE-Core rev: 76aa4f49db7d32bbd35703c64470fdfc63f403a4)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/sstate.bbclass

@@ -854,6 +854,10 @@ def setscene_depvalid(task, taskdependees, notneeded, d):
     if taskdependees[task][1] == "do_populate_lic":
         return True
 
+    # We only need to trigger packagedata through direct dependencies
+    if taskdependees[task][1] == "do_packagedata":
+        return True
+
     for dep in taskdependees:
         bb.debug(2, "  considering dependency: %s" % (str(taskdependees[dep])))
         if task == dep: