bitbake: runqueue: Save unihashes more frequently

There are some runqueue code paths where the unihash cache would not be
saved where for example only parsing or an occurred. Save the cache at the
end of runqueue generation to ensure entries are cached.

(Bitbake rev: 9eee0d36870c11dd303894a6151c33a83bd3a1bc)

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

bitbake/lib/bb/runqueue.py

@@ -1443,6 +1443,7 @@ class RunQueue:
                 self.state = runQueueComplete
             else:
                 self.state = runQueueSceneInit
+                bb.parse.siggen.save_unitaskhashes()
 
         if self.state is runQueueSceneInit:
             self.rqdata.init_progress_reporter.next_stage()