QtIFW

fix progress calculation

use number of components stored in "names" and not the size of the
string "name" to calculate progress.

Task-number: QTIFW-602
Change-Id: If96a1233c9eef6600e995b29e30e7d8dcf5c477d
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>