drm/nouveau/disp/sor/gf119: select correct sor when poking training pattern

Fixes a regression caused by a stupid thinko from "disp/sor/gf119: both
links use the same training register".

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org

drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c

@@ -40,7 +40,8 @@ static int
 gf119_sor_dp_pattern(struct nvkm_output_dp *outp, int pattern)
 {
 	struct nvkm_device *device = outp->base.disp->engine.subdev.device;
-	nvkm_mask(device, 0x61c110, 0x0f0f0f0f, 0x01010101 * pattern);
+	const u32 soff = gf119_sor_soff(outp);
+	nvkm_mask(device, 0x61c110 + soff, 0x0f0f0f0f, 0x01010101 * pattern);
 	return 0;
 }