bitbake: tinfoil: Add back ability to parse on top of a datastore

This option was removed recently as we didn't realise the layerindex
relies upon it. Add back the API which it turns out can be supported
as long as we assume the datastore passed in is a remote datastore
which it usually would be unless created locally.

(Bitbake rev: 4618da2094189e4d814b7d65672cb65c86c0626a)

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

bitbake/lib/bb/command.py

@@ -499,8 +499,7 @@ class CommandsSync:
         appends = params[1]
         appendlist = params[2]
         if len(params) > 3:
-            config_data_dict = params[3]
-            config_data = command.remotedatastores.receive_datastore(config_data_dict)
+            config_data = command.remotedatastores[params[3]]
         else:
             config_data = None