fate: add DNxHR 12-bit example.

Signed-off-by: Steven Robertson <steven@strobe.cc>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests/fate/dnxhd.mak

 FATE_DNXHD = fate-dnxhd-mbaff     \
              fate-dnxhr-444       \
+             fate-dnxhr-12bit     \
              fate-dnxhr-parse     \
              fate-dnxhr-prefix1   \
              fate-dnxhr-prefix2   \
@@ -12,6 +13,7 @@ fate-dnxhd: $(FATE_DNXHD) $(FATE_VCODEC_DNXHD)
 
 fate-dnxhd-mbaff: CMD = framecrc -flags +bitexact -idct simple -i $(TARGET_SAMPLES)/dnxhd/dnxhd100_cid1260.mov -pix_fmt yuv422p10le
 fate-dnxhr-444:   CMD = framecrc -flags +bitexact -idct simple -i $(TARGET_SAMPLES)/dnxhd/dnxhr444_cid1270.mov -pix_fmt yuv444p10le
+fate-dnxhr-12bit: CMD = framecrc -flags +bitexact -idct simple -i $(TARGET_SAMPLES)/dnxhd/dnxhr_cid1271_12bit.mov -pix_fmt yuv422p12le
 fate-dnxhr-parse: CMD = framecrc -flags +bitexact -idct simple -i $(TARGET_SAMPLES)/dnxhd/dnxhr_cid1274.dnxhr -pix_fmt yuv422p
 fate-dnxhr-prefix1: CMD = framecrc -flags +bitexact -idct simple -i $(TARGET_SAMPLES)/dnxhd/prefix-256x1536.dnxhr -pix_fmt yuv422p
 fate-dnxhr-prefix2: CMD = framecrc -flags +bitexact -idct simple -i $(TARGET_SAMPLES)/dnxhd/prefix-256x1716.dnxhr -pix_fmt yuv422p

tests/ref/fate/dnxhr-12bit

+#tb 0: 1/24
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 1920x1080
+#sar 0: 1/1
+0,          0,          0,        1,  8294400, 0x31bfa8f1