Call all instances of an objectPath when executing "POST"

- For example "DeleteAll" exists in both bmc updater and host updater.
  Therefore when a user executes DeleteAll using REST, both the two
  instances should be called upon.

Resolves openbmc/openbmc#2490

Change-Id: Ic38b00de137593bc344ff9d743d3144a48bd5f13
Signed-off-by: Saqib Khan <khansa@us.ibm.com>
diff --git a/module/obmc/wsgi/apps/rest_dbus.py b/module/obmc/wsgi/apps/rest_dbus.py
index 3f84ddd..c44a45d 100644
--- a/module/obmc/wsgi/apps/rest_dbus.py
+++ b/module/obmc/wsgi/apps/rest_dbus.py
@@ -328,24 +328,28 @@
         self.interface = ''
 
     def find(self, path, method):
+        method_list = []
         busses = self.try_mapper_call(
             self.mapper.get_object, path=path)
         for items in busses.iteritems():
             m = self.find_method_on_bus(path, method, *items)
             if m:
-                return m
+                method_list.append(m)
+        return method_list
 
         abort(404, _4034_msg % ('method', 'found', method))
 
     def setup(self, path, method):
-        request.route_data['method'] = self.find(path, method)
+        request.route_data['map'] = self.find(path, method)
 
     def do_post(self, path, method):
         try:
-            if request.parameter_list:
-                return request.route_data['method'](*request.parameter_list)
-            else:
-                return request.route_data['method']()
+            for item in request.route_data['map']:
+                if request.parameter_list:
+                    item(*request.parameter_list)
+                else:
+                    item()
+            return
 
         except dbus.exceptions.DBusException, e:
             paramlist = []