Revert "m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch"

This reverts commit 87ae522e which is
commit db87db65 upstream.

It is not needed in 5.10.y and causes problems.

Link: https://lore.kernel.org/r/CAK8P3a0vZrXxNp3YhrxFjFunHgxSZBKD9Y4darSODgeFAukCeQ@mail.gmail.com


Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>