media/gpu/test: Update import mode blacklist with guado-kernelnext.

This CL adds guado-kernelnext to the import mode blacklist used by the
video_decode_accelerator(_perf)_tests. The blacklist makes sure the tests are
run in allocate mode on devices not supporting import mode. Currently only guado
is on the blacklist, this CL adds guado-kernelnext.

TEST=compiled video_decode_accelerator_tests

BUG=b:139841588

Change-Id: Icee92dffa9134d3da06542d130f522f5b7b48e4b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1844751Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Commit-Queue: David Staessens <dstaessens@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703535}

media/gpu/test/video_player/video_player_test_environment.cc

@@ -63,7 +63,8 @@ void VideoPlayerTestEnvironment::SetUp() {
   // support import mode.
 #if defined(OS_CHROMEOS)
   constexpr const char* kImportModeBlacklist[] = {
-      "buddy", "guado", "nyan_big", "nyan_blaze", "nyan_kitty", "rikku"};
+      "buddy",      "guado", "guado-kernelnext", "nyan_big", "nyan_blaze",
+      "nyan_kitty", "rikku"};
   const std::string board = base::SysInfo::GetLsbReleaseBoard();
   import_supported_ = (std::find(std::begin(kImportModeBlacklist),
                                  std::end(kImportModeBlacklist),