Fix PPC build

Was missing a #include "mythconfig.h"

Author: jyavenard

mythtv/libs/libmyth/audio/eldutils.cpp

@@ -23,6 +23,7 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#include "mythconfig.h"
 #include "eldutils.h"
 #include <sys/types.h>
 #include <inttypes.h>