programmer: Make use of new register_spi_master() API

Pass pointers to dynamically allocated data to register_spi_master().
This way we can avoid some mutable globals.

Change-Id: Id7821f1db3284b7b5b3d0abfd878b979c53870a1
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/54067
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
11 files changed