Remove Exynos from MediaCodec blacklist. Limit MediaTek blacklist.

media/filters/stream_parser_factory.cc

Index: media/filters/stream_parser_factory.cc
diff --git a/media/filters/stream_parser_factory.cc b/media/filters/stream_parser_factory.cc
index 92ccbf4fdfc534f3a42f1bcb4cfd0de41a95a281..355cf1d403d2fdaadb8cae1bcebcaf332a739ed1 100644
--- a/media/filters/stream_parser_factory.cc
+++ b/media/filters/stream_parser_factory.cc
@@ -343,7 +343,7 @@ static bool VerifyCodec(
           return false;
       }
       if (codec_info->tag == CodecInfo::HISTOGRAM_VP8 &&
-          !media::MediaCodecUtil::IsVp8DecoderAvailable() &&
+          !media::MediaCodecUtil::IsVp8CodecAvailable() &&
           !media::IsUnifiedMediaPipelineEnabledForMse()) {
         return false;
       }