builder/vmware: Path related fixes in esx5 driver

- Fix mkdir of packer_cache in ESX5Driver.UploadISO

- Fix vmx path in ESX5Driver.IsRunning

builder/vmware/driver_esx5.go

@@ -42,7 +42,7 @@ func (d *ESX5Driver) CreateDisk(diskPathLocal string, size string, typeId string
 }
 
 func (d *ESX5Driver) IsRunning(vmxPathLocal string) (bool, error) {
-	vmxPath := d.datastorePath(vmxPathLocal)
+	vmxPath := filepath.Join(d.outputDir, filepath.Base(vmxPathLocal))
 	state, err := d.run(nil, "vim-cmd", "vmsvc/power.getstate", vmxPath)
 	if err != nil {
 		return false, err
@@ -84,11 +84,11 @@ func (d *ESX5Driver) UploadISO(localPath string) (string, error) {
 		return "", err
 	}
 
-	if err := d.mkdir(filepath.Dir(targetFile)); err != nil {
+	finalPath := d.datastorePath(targetFile)
+	if err := d.mkdir(filepath.Dir(finalPath)); err != nil {
 		return "", err
 	}
 
-	finalPath := d.datastorePath(targetFile)
 	if err := d.upload(finalPath, localPath); err != nil {
 		return "", err
 	}