hw/scsi: Fix sector translation bug in scsi_unmap_complete_noio

hw/scsi: Fix sector translation bug in scsi_unmap_complete_noio

check_lba_range expects sectors to be expressed in original qdev blocksize, but
scsi_unmap_complete_noio was translating them to 512 block sizes, which was
causing sense errors in the larger LBAs in devices using a 4k block size.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/345
Signed-off-by: Kit Westneat <kit.westneat@gmail.com>
Message-Id: <20210521142829.326217-1-kit.westneat@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>