add tile test vectors

3840x2160

vp90-2-08-tile_1x8_frame_parallel.webm
vp90-2-08-tile_1x8.webm

vpxenc crowd_run_2160p50.y4m \
  --codec=vp9 -p 2 \
  --frame-parallel=${fpm} \
  --tile-columns=${tc} \
  --limit=10 \
  --auto-alt-ref=1 \
  --lag-in-frames=5 \
  --target-bitrate=2500

Change-Id: I6dc19b4fca483d03ef9a897a843bf9037d095c8e
diff --git a/test/test-data.sha1 b/test/test-data.sha1
index 57c7eb3..4451479 100644
--- a/test/test-data.sha1
+++ b/test/test-data.sha1
@@ -563,3 +563,7 @@
 1a9c2914ba932a38f0a143efc1ad0e318e78888b  vp90-2-tos_426x178_tile_1x1_181kbps.webm
 a3d2b09f24debad4747a1b3066f572be4273bced  vp90-2-tos_640x266_tile_1x2_336kbps.webm
 c64b03b5c090e6888cb39685c31f00a6b79fa45c  vp90-2-tos_854x356_tile_1x2_656kbps.webm
+0e7cd4135b231c9cea8d76c19f9e84b6fd77acec  vp90-2-08-tile_1x8_frame_parallel.webm
+c9b6850af28579b031791066457f4cb40df6e1c7  vp90-2-08-tile_1x8_frame_parallel.webm.md5
+e448b6e83490bca0f8d58b4f4b1126a17baf4b0c  vp90-2-08-tile_1x8.webm
+5e524165f0397e6141d914f4f0a66267d7658376  vp90-2-08-tile_1x8.webm.md5