Bug 22717: (bug 20287 follow-up) Fix Google OpenId auto registration

Bug 22717: (bug 20287 follow-up) Fix Google OpenId auto registration

Silly bug caused by:
  commit ef410fd62f279a10687636a4f26babb2c91ecadc
  Bug 20287: Replace occurrences of AddMember with Koha::Patron->new->store->borrowernumber

Constructors take a hashref!

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 59b740613e7a72bf6e5283c2876bad9444a7ef6a)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>