a52dec: Check that the a52_state is correctly initialized
a52dec: Check that the a52_state is correctly initialized

fluendo/gst-plugins-ugly,matsu/gst-plugins-ugly,fluendo/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,matsu/gst-plugins-ugly,matsu/gst-plugins-ugly,fluendo/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,matsu/gst-plugins-ugly