QtIFW

Fix archivegen recursive include of directories with filter.

Never pass recursive with true even if path is a directory,
otherwise the path containing the file name part of the path
is used as path to recurse and the actual file name is used
as filter.
For example: /path/to/doc -> Directory: /path/to -> Filter: doc

Task-number: QTIFW-639
Change-Id: I60972eab0b34073b4c81a815ee83058df09d1eab
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>