Fix image flashing

PS2: full_filename is not a dir

PS3: use a consistent format of always assuming directory
     is missing the trailing / + fix whitespace alignment

Change-Id: Ib963473ae10571b3d069b326d024ca04c7224dda
(cherry picked from commit fa4ff144374474c541351d153549ad11d4396614)
diff --git a/gui/action.cpp b/gui/action.cpp
index a917d2b..a96e15a 100644
--- a/gui/action.cpp
+++ b/gui/action.cpp
@@ -1737,18 +1737,11 @@
 {
 	int op_status = 0;
 
-	PartitionSettings part_settings;
 	operation_start("Flash Image");
 	string path, filename;
 	DataManager::GetValue("tw_zip_location", path);
 	DataManager::GetValue("tw_file", filename);
-	part_settings.Backup_Folder = path + "/" + filename;
-	unsigned long long total_bytes = TWFunc::Get_File_Size(part_settings.Backup_Folder);
-	ProgressTracking progress(total_bytes);
-	part_settings.progress = &progress;
-	part_settings.adbbackup = false;
-	part_settings.PM_Method = PM_RESTORE;
-	if (PartitionManager.Flash_Image(&part_settings))
+	if (PartitionManager.Flash_Image(path, filename))
 		op_status = 0; // success
 	else
 		op_status = 1; // fail