Fixing #16967: Merge media permissions into one manage media permission

--HG--
branch : dev

src/Orchard.Web/Modules/Orchard.Media/Services/XmlRpcHandler.cs

@@ -49,7 +49,7 @@ namespace Orchard.Media.Services {
             XRpcStruct file) {
 
             var user = _membershipService.ValidateUser(userName, password);
-            if (!_authorizationService.TryCheckAccess(Permissions.UploadMediaFiles, user, null)) {
+            if (!_authorizationService.TryCheckAccess(Permissions.ManageMedia, user, null)) {
                 //TEMP: return appropriate access-denied response for user
                 throw new ApplicationException("Access denied");
             }