Correct SPL use of ATMEL_PIO4

This converts 1 usage of this option to the non-SPL form, since there is
no SPL_ATMEL_PIO4 defined in Kconfig

Reviewed-by: Eugen Hristev <eugen.hristev@collabora.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
1 file changed