Report all the foreign interest earned on your US tax return and do not take a credit or deduction for the foreign taxes as you will be reimbursed by the foreign country for the taxes paid. Anytime you are expecting to be reimbursed for taxes paid, or any other deductible expenses for that matter, there is no need to claim a tax credit or deduction on your tax return. This applies even if the reimbursement is in a different tax year.
Credit and deductions apply when you incurred an expense and you were not reimbursed by either an employer, insurance company, or in your case, another country.