bitbake: prserv: Adapt autostart to bitbake-worker

With the change to bitbake-worker we need to ensure the workers know
how to contact the PR service, the magic 0 port and singleton is
no longer enough.

(Bitbake rev: c761751e259bb8e940552a28794b45887b5a72d9)

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

bitbake/lib/bb/runqueue.py

@@ -831,6 +831,7 @@ class RunQueue:
             "logdefaultverbose" : bb.msg.loggerDefaultVerbose,
             "logdefaultverboselogs" : bb.msg.loggerVerboseLogs,
             "logdefaultdomain" : bb.msg.loggerDefaultDomains,
+            "prhost" : self.cooker.prhost,
         }
 
         worker.stdin.write("<cookerconfig>" + pickle.dumps(self.cooker.configuration) + "</cookerconfig>")