Revert "spi: atmel: Drop non-dm code"

As we aren't quite able to convert some platforms with a very small size
limit in SPL yet, we need to revert this for now.

This reverts commit 7b0947787358c6b277431d6b76ce043d8bec641d.

Signed-off-by: Tom Rini <trini@konsulko.com>
5 files changed