7691: address with saveInAddressBook 0 are still being added to the address book for new customers(backport to 2.2)

[RomaKis]

Backport from #11903.

If you place an order as a guest and set the save_in_address_book for an address on 0, that address will still be copied to the customer address book when registering as a new customer on the checkout success page.

Fixed Issues (if relevant)

1. address with saveInAddressBook 0 are still being added to the address book for new customers #7691: address with saveInAddressBook 0 are still being added to the address book for new customers.

Manual testing scenarios

1. Place an order as a guest and set the save_in_address_book for your shipping address to 0
2. Click the register link on the checkout success page
3. Addresses with save_in_address_book set to 0 should not be copied to the new customer address book.

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)