package/vlc: add optional support for libcddb

When libcddb was compiled before, vlc will use it as optional
dependency:

$ output/host/usr/bin/x86_64-linux-readelf -a output/target/usr/lib/vlc/plugins/access/libcdda_plugin.so | grep NEEDED | sort
 0x0000000000000001 (NEEDED)             Shared library: [libcddb.so.2]
[...]

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/vlc/vlc.mk

@@ -186,6 +186,13 @@ else
 VLC_CONF_OPTS += --disable-bluray
 endif
 
+ifeq ($(BR2_PACKAGE_LIBCDDB),y)
+VLC_CONF_OPTS += --enable-libcddb
+VLC_DEPENDENCIES += libcddb
+else
+VLC_CONF_OPTS += --disable-libcddb
+endif
+
 ifeq ($(BR2_PACKAGE_LIBDVBPSI),y)
 VLC_CONF_OPTS += --enable-dvbpsi
 VLC_DEPENDENCIES += libdvbpsi