sb600spi.c: Move sb600_spibar into spi data instead of being global

This driver already has sb600spi_data struct, and sb600_spibar can
be its member instead of being a global variable.

BUG=b:185191942
TEST=builds

Change-Id: Ifaad0f0a2c0e956029d2df18ddcfd092515ca3c0
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/54712
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