drm: nova: select NOVA_CORE

drm: nova: select NOVA_CORE

[ Upstream commit 97ad568cd6a58804129ba071f3258b5c4782fb0d ]

The nova-drm driver does not provide any value without nova-core being
selected as well, hence select NOVA_CORE.

Fixes: cdeaeb9dd762 ("drm: nova-drm: add initial driver skeleton")
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Link: https://patch.msgid.link/20251028110058.340320-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>