gst-ffmpeg: fix path for new static libav
gst-ffmpeg: fix path for new static libav

freedesktop-unofficial-mirror/gstreamer__cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,BigBrother-International/gst-cerbero,ylatuya/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,BigBrother-International/gst-cerbero,ford-prefect/cerbero,ramaxlo/cerbero,centricular/cerbero,ikonst/cerbero,AlertMe/cerbero,shoreflyer/cerbero,shoreflyer/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,nicolewu/cerbero,ikonst/cerbero,flexVDI/cerbero,AlertMe/cerbero,cee1/cerbero-mac,jackjansen/cerbero-2013,ford-prefect/cerbero,jackjansen/cerbero-2013,cee1/cerbero-mac,davibe/cerbero,EricssonResearch/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,nirbheek/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,brion/cerbero,BigBrother-International/gst-cerbero,sdroege/cerbero,jackjansen/cerbero-2013,jackjansen/cerbero,brion/cerbero,shoreflyer/cerbero,AlertMe/cerbero,fluendo/cerbero,atsushieno/cerbero,multipath-rtp/cerbero,GStreamer/cerbero,nirbheek/cerbero-old,nicolewu/cerbero,brion/cerbero,ikonst/cerbero,nzjrs/cerbero,superdump/cerbero,OptoFidelity/cerbero,sdroege/cerbero,ramaxlo/cerbero,lubosz/cerbero,davibe/cerbero,ikonst/cerbero,AlertMe/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,nirbheek/cerbero-old,fluendo/cerbero,sdroege/cerbero,nzjrs/cerbero,jackjansen/cerbero-2013,flexVDI/cerbero,cee1/cerbero-mac,cee1/cerbero-mac,davibe/cerbero,lubosz/cerbero,EricssonResearch/cerbero,brion/cerbero,OptoFidelity/cerbero,justinjoy/cerbero,flexVDI/cerbero,flexVDI/cerbero,jackjansen/cerbero,AlertMe/cerbero,BigBrother-International/gst-cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,GStreamer/cerbero,jackjansen/cerbero,GStreamer/cerbero,davibe/cerbero,flexVDI/cerbero,EricssonResearch/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,nirbheek/cerbero-old,superdump/cerbero,OptoFidelity/cerbero,justinjoy/cerbero,nirbheek/cerbero-old,jackjansen/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,brion/cerbero,OptoFidelity/cerbero,nzjrs/cerbero,shoreflyer/cerbero,multipath-rtp/cerbero,nirbheek/cerbero,sdroege/cerbero,ford-prefect/cerbero,shoreflyer/cerbero,GStreamer/cerbero,nzjrs/cerbero,BigBrother-International/gst-cerbero,atsushieno/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,ylatuya/cerbero,fluendo/cerbero,lubosz/cerbero,superdump/cerbero,fluendo/cerbero,atsushieno/cerbero,ramaxlo/cerbero,nzjrs/cerbero,atsushieno/cerbero,EricssonResearch/cerbero,jackjansen/cerbero-2013,justinjoy/cerbero,ramaxlo/cerbero,ylatuya/cerbero,ford-prefect/cerbero,nirbheek/cerbero,EricssonResearch/cerbero,lubosz/cerbero,nirbheek/cerbero,multipath-rtp/cerbero,ikonst/cerbero,multipath-rtp/cerbero,superdump/cerbero,justinjoy/cerbero,fluendo/cerbero,ramaxlo/cerbero,nicolewu/cerbero,ylatuya/cerbero,multipath-rtp/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,GStreamer/cerbero,atsushieno/cerbero,centricular/cerbero,sdroege/cerbero