dirtyjtag_spi: Add DJTAG version detection

Read the version with CMD_INFO and set our `spi_master.command`
accordingly.

Change-Id: Idbbeb149b1c3d92354817a2c8db570426d834452
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/73264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jean THOMAS <virgule@jeanthomas.me>
1 file changed