drm/nouveau: fix out-of-tree module build

The $(srctree) addition a while back busted building the out-of-tree
version of the module, and I've been hacking it up ever since.

This allows us to work around the issue.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2020-01-29 17:32:22 +10:00
commit bbd540c072