drm/nouveau/core: increase maximum number of notifies that a client can request

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/core/client.h

@@ -9,7 +9,7 @@ struct nvkm_client {
 	u64 device;
 	u32 debug;
 
-	struct nvkm_client_notify *notify[16];
+	struct nvkm_client_notify *notify[32];
 	struct rb_root objroot;
 
 	bool super;