CC-2873: Soundcloud plugin doesn't log any error when there is an error

with soundcloud uploading through api controller

- Changed constant names
- added -1 constant

utils/soundcloud-uploader.php

@@ -60,6 +60,6 @@ if(count($argv) != 2){
 $id = $argv[1];
 $file = Application_Model_StoredFile::Recall($id);
 // set id with -2 which is indicator for processing
-$file->setSoundCloudFileId(SC_PROGRESS);
+$file->setSoundCloudFileId(SOUNDCLOUD_PROGRESS);
 $file->uploadToSoundCloud();