Use driver-y instead of obj-y for model_6xx_init.o.
Otherwise booting (but not building) fails:
Initializing CPU #0
CPU: vendor Intel device 665
CPU: family 06, model 06, stepping 05
This patch was tested to fix the issue on MSI MS-6178.
Signed-off-by: Uwe Hermann <firstname.lastname@example.org>
Acked-by: Myles Watson <email@example.com>