drm/nv50-nvc0: include nv50_display in evo debugging

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

drivers/gpu/drm/nouveau/nv50_display.c

@@ -24,6 +24,7 @@
  *
  */
 
+#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
 #include "nv50_display.h"
 #include "nouveau_crtc.h"
 #include "nouveau_encoder.h"