Update debitpayment.phtml

trim $owner as it can be just a space. Customers tend not to remove this.
Update creditcard.phtml

trim billing name as it can be just a space. Customers tend not to remove this.
Merge remote-tracking branch 'coderbyheart/trim-debitpayment-owner'

For SEPA payments, there is no card owner field anymore, so I skipped that changeset.