Add test vector for row/col tile decoding

1920x1080

vp90-2-08-tile-4x4.webm
vp90-2-08-tile-4x4.webm.md5

vpxenc blue_sky_1080p25 --frame-parallel=0 \
--tile-columns=2 --tile-rows=2 \
--lossless=0 --error-resilient=0 \
--min-q=0 --max-q=30 --kf-min-dist=0 --kf-max-dist=9999 \
--cpu-used=0 --codec=vp9 -p 2 --good --fps=25/1 --limit=5

vp90-2-08-tile-4x1.webm
vp90-2-08-tile-4x1.webm.md5

vpxenc blue_sky_1080p25 --frame-parallel=0 \
--tile-columns=0 --tile-rows=2 \
--lossless=0 --error-resilient=0 \
--min-q=0 --max-q=30 --kf-min-dist=0 --kf-max-dist=9999 \
--cpu-used=0 --codec=vp9 -p 2 --good --fps=25/1 --limit=5

Change-Id: I77d0ccf9b721ae5cfa72781fe0d3c534ea43b756

test/test-data.sha1

diff --git a/test/test-data.sha1 b/test/test-data.sha1
index 44220d5..5229d09 100644
--- a/test/test-data.sha1
+++ b/test/test-data.sha1
@@ -538,3 +538,7 @@
 a481fbea465010b57af5a19ebf6d4a5cfe5b9278  vp90-2-08-tile_1x4_frame_parallel.webm.md5
 0203ec456277a01aec401e7fb6c72c9a7e5e3f9d  vp90-2-08-tile_1x4.webm
 c9b237dfcc01c1b414fbcaa481d014a906ef7998  vp90-2-08-tile_1x4.webm.md5
+20c75157e91ab41f82f70ffa73d5d01df8469287  vp90-2-08-tile-4x4.webm
+ae7451810247fd13975cc257aa0301ff17102255  vp90-2-08-tile-4x4.webm.md5
+2ec6e15422ac7a61af072dc5f27fcaf1942ce116  vp90-2-08-tile-4x1.webm
+0094f5ee5e46345017c30e0aa4835b550212d853  vp90-2-08-tile-4x1.webm.md5