multimedia/avidemux-plugins: Attempt to fix package after r493856

pkg-static: Unable to access file .../usr/local/%%ESD%%lib/ADM_plugins6/audioDevices/libADM_av_esd.so:No such file or directory

http://beefy9.nyi.freebsd.org/data/112amd64-default/493926/logs/avidemux-plugins-2.6.11_11.log