sb600spi.c: Make use of new register_spi_master() API

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

BUG=b:185191942
TEST=builds

Change-Id: Id555dc5e125309883a816e00afb26d7141fd870d
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/54713
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
1 file changed