ffmpeg: enable eac3 encoder

This is needed now as kodi recently added support for eac3 transcoding.

Signed-off-by: Matthias Reichl <hias@horus.com>

Author: HiassofT

packages/multimedia/ffmpeg/package.mk

@@ -185,6 +185,7 @@ configure_target() {
               --disable-hardcoded-tables \
               --disable-encoders \
               --enable-encoder=ac3 \
+              --enable-encoder=eac3 \
               --enable-encoder=aac \
               --enable-encoder=wmav2 \
               --enable-encoder=mjpeg \