spi25: Normalize parameters of spi_nbyte_read()

Most other reading functions have the destination buffer
as second parameter.

Change-Id: Id3f91f3d23132b0706b3b33bbf156356c9bf5ebc
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/74864
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
3 files changed