Re-enable cdda_player.

Already applied upstream:
http://git.savannah.gnu.org/cgit/libcdio.git/commit/?id=3c1eff03a256ab47bb79f439bfc478664e3fe917

Index: configure
--- configure.orig
+++ configure
@@ -18229,7 +18229,6 @@ $as_echo "#define HAVE_NETBSD_CDROM 1" >>confdefs.h
 
  	# LIBS="$LIBS -lcam"
   	cd_drivers="${cd_drivers}, NetBSD "
-	enable_cdda_player="no"
 	;;
      os2*)