Bug 11286: fix bug preventing adding a new subfield to an authority framework

Bug 11286: fix bug preventing adding a new subfield to an authority framework

Bug 10602 introduces a bug when adding a new subfield to an authority
framework. A new parameter is added in a sql query but the placeholder
is missing.

Test plan:
- edit an authority framework
- add a new subfield
- save
- boom!
DBD::mysql::st execute failed: called with 16 bind variables when 15 are
needed at
/home/home/src/admin/auth_subfields_structure.pl line 454.
- apply the patch and try again

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Work as described. No koha-qa errors

Tested trying to add subfield to 100, 2 for example.
Without patch silently fails (but error is logged)
With patch subfield creation or elimination is fine

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
One line fix for a bad bug. Confirmed the bug on master and
the fix. Passes all tests and QA script.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>