gpu: drm: nova: select AUXILIARY_BUS instead of depending on it

CONFIG_AUXILIARY_BUS cannot be enabled explicitly, and unless we select
it we have no way to include it (and thus to enable NOVA_DRM) unless
another driver happens to do it for us.

Fixes: cdeaeb9 ("drm: nova-drm: add initial driver skeleton")
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/r/20250515-aux_bus-v2-3-47c70f96ae9b@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Author: Gnurou

drivers/gpu/drm/nova/Kconfig

@@ -1,9 +1,9 @@
 config DRM_NOVA
 	tristate "Nova DRM driver"
-	depends on AUXILIARY_BUS
 	depends on DRM=y
 	depends on PCI
 	depends on RUST
+	select AUXILIARY_BUS
 	default n
 	help
 	  Choose this if you want to build the Nova DRM driver for Nvidia