Fix casting for tile step (#3355)
Fix casting for tile step (#3355)

Signed-off-by: Behrooz <fa30078e2c18f830d36abc3155a658058044d11c@users.noreply.github.com>
Project-MONAI/MONAI,Project-MONAI/MONAI,Project-MONAI/MONAI,Project-MONAI/MONAI