media/test/data: Update video thumbnail MD5 sum

On ChromeOS, CL:950007 changed the decoder output format to NV12
instead of RGB. So we need to update MD5.
This updates md5 for h264 on ivybridge and rambi platforms.

TBR=hoegsberg@chromium.org
TBR=mcasas@chromium.org

BUG=chromium:827032
TEST=video_VideoDecodeAccelerator on link

Change-Id: I3a117ada2038c41077ab116a8c72ba2f4c96df08
Reviewed-on: https://chromium-review.googlesource.com/1023615Reviewed-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Pawel Osciak <posciak@chromium.org>
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553432}

media/test/data/test-25fps.h264.md5

@@ -4,7 +4,7 @@
 # Intel - VA_FILTER_SCALING_DEFAULT
 d924f9464d01847f3c3d2dee739603cc
 # Intel - VA decode to NV12, EGLImage CSC
-82a05426b6ef227e5147eb7b710423fb
+d1ba5f08cdbcc39ee24d99acaf9477ea
 # TODO(hiroh): Update X11 value
 # Intel - Haswell - X11
 # Intel - Ivy Bridge - X11