Bug 20428: Added missing parameter --upload-tmp-path

Bug 20428: Added missing parameter --upload-tmp-path

Line 463 lists valid parameters, but it was missing
upload-tmp-path: which resulted in the koha-create
saying it is an invalid parameter.

TEST PLAN
---------
1) apply all patches but this.
2) sudo perl ~/misc4dev/cp_debian_files.pl
3) restart_all
4) sudo koha-create --create-db --upload-tmp-path unique-path
awesome-test-name
   -- Fails to run.
5) apply this patch
6) repeat 2-4
7) sudo vi /etc/koha/sites/awesome-test-name/koha-conf.xml
   -- the upload_tmp_path entry should have unique-path
      in it.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>