www/firefox: fix build on powerpc64le
ld: error: undefined hidden symbol: mozilla::VideoFramePool::~VideoFramePool()
referenced by Unified_cpp_ffmpeg_ffmpeg580.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg58/Unified_cpp_ffmpeg_ffmpeg580.o:(mozilla::FFmpegVideoDecoder<58>::~FFmpegVideoDecoder())referenced by Unified_cpp_ffmpeg_ffmpeg580.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg58/Unified_cpp_ffmpeg_ffmpeg580.o:(mozilla::FFmpegVideoDecoder<58>::DoDecode(mozilla::MediaRawData*, unsigned char*, int, bool*, nsTArray<RefPtr<mozilla::MediaData> >&))referenced by Unified_cpp_ffmpeg_ffmpeg580.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg58/Unified_cpp_ffmpeg_ffmpeg580.o:(mozilla::FFmpegVideoDecoder<58>::ProcessShutdown())referenced 4 more times
ld: error: undefined hidden symbol: mozilla::VideoFramePool::ReleaseUnusedVAAPIFrames()
referenced by Unified_cpp_ffmpeg_ffmpeg580.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg58/Unified_cpp_ffmpeg_ffmpeg580.o:(mozilla::FFmpegVideoDecoder<58>::DoDecode(mozilla::MediaRawData*, unsigned char*, int, bool*, nsTArray<RefPtr<mozilla::MediaData> >&))referenced by Unified_cpp_ffmpeg_ffmpeg590.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg59/Unified_cpp_ffmpeg_ffmpeg590.o:(mozilla::FFmpegVideoDecoder<59>::DoDecode(mozilla::MediaRawData*, unsigned char*, int, bool*, nsTArray<RefPtr<mozilla::MediaData> >&))
ld: error: undefined hidden symbol: mozilla::VideoFramePool::VideoFramePool()
referenced by Unified_cpp_ffmpeg_ffmpeg580.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg58/Unified_cpp_ffmpeg_ffmpeg580.o:(mozilla::FFmpegVideoDecoder<58>::DoDecode(mozilla::MediaRawData*, unsigned char*, int, bool*, nsTArray<RefPtr<mozilla::MediaData> >&))referenced by Unified_cpp_ffmpeg_ffmpeg590.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg59/Unified_cpp_ffmpeg_ffmpeg590.o:(mozilla::FFmpegVideoDecoder<59>::DoDecode(mozilla::MediaRawData*, unsigned char*, int, bool*, nsTArray<RefPtr<mozilla::MediaData> >&))
ld: error: undefined hidden symbol: mozilla::VideoFramePool::GetVideoFrameSurface(_VADRMPRIMESurfaceDescriptor&, AVCodecContext*, AVFrame*, mozilla::FFmpegLibWrapper*)
referenced by Unified_cpp_ffmpeg_ffmpeg580.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg58/Unified_cpp_ffmpeg_ffmpeg580.o:(mozilla::FFmpegVideoDecoder<58>::CreateImageVAAPI(long, long, long, nsTArray<RefPtr<mozilla::MediaData> >&))referenced by Unified_cpp_ffmpeg_ffmpeg590.cpp
/wrkdirs/usr/ports/www/firefox/work/.build/toolkit/library/build/../../../dom/media/platforms/ffmpeg/ffmpeg59/Unified_cpp_ffmpeg_ffmpeg590.o:(mozilla::FFmpegVideoDecoder<59>::CreateImageVAAPI(long, long, long, nsTArray<RefPtr<mozilla::MediaData> >&))
Upstream issue at https://bugzilla.mozilla.org/show_bug.cgi?id=1758610.
A