recipes/libtool: Bump to 2.4.6
recipes/libtool: Bump to 2.4.6

EricssonResearch/cerbero,fluendo/cerbero,sdroege/cerbero,OptoFidelity/cerbero,flexVDI/cerbero,multipath-rtp/cerbero,shoreflyer/cerbero,OptoFidelity/cerbero,fluendo/cerbero,EricssonResearch/cerbero,fluendo/cerbero,shoreflyer/cerbero,atsushieno/cerbero,OptoFidelity/cerbero,multipath-rtp/cerbero,justinjoy/cerbero,atsushieno/cerbero,GStreamer/cerbero,GStreamer/cerbero,flexVDI/cerbero,centricular/cerbero,nirbheek/cerbero,fluendo/cerbero,nirbheek/cerbero,multipath-rtp/cerbero,GStreamer/cerbero,atsushieno/cerbero,shoreflyer/cerbero,nirbheek/cerbero,flexVDI/cerbero,GStreamer/cerbero,fluendo/cerbero,atsushieno/cerbero,centricular/cerbero,EricssonResearch/cerbero,shoreflyer/cerbero,flexVDI/cerbero,sdroege/cerbero,justinjoy/cerbero,atsushieno/cerbero,justinjoy/cerbero,sdroege/cerbero,multipath-rtp/cerbero,justinjoy/cerbero,flexVDI/cerbero,centricular/cerbero,shoreflyer/cerbero,GStreamer/cerbero,centricular/cerbero,centricular/cerbero,sdroege/cerbero,EricssonResearch/cerbero,OptoFidelity/cerbero,sdroege/cerbero,nirbheek/cerbero,multipath-rtp/cerbero,EricssonResearch/cerbero