drm/nouveau: run perflvl and M table scripts on mem clock change

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c
index 6b641b6..5a95be6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_perf.c
+++ b/drivers/gpu/drm/nouveau/nouveau_perf.c
@@ -160,6 +160,7 @@
 			perflvl->memory = ROM16(entry[12]) * 1000;
 			break;
 		case 0x30:
+			perflvl->memscript = ROM16(entry[2]);
 		case 0x35:
 			perflvl->fanspeed = entry[6];
 			perflvl->voltage = entry[7];