vlc: fix svg support

In vlc, svg support is done using librsvg, not libsvg.

Fixes:
  http://autobuild.buildroot.org/results/344/344af6e756a5f2c1ee515a355ae5b288401c4c71/build-end.log
  http://autobuild.buildroot.org/results/19f/19f1450ed5453aa666bc7aae2e965ad81e5f845d/build-end.log

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/vlc/vlc.mk

@@ -141,9 +141,9 @@ else
 VLC_CONF_OPT += --disable-png
 endif
 
-ifeq ($(BR2_PACKAGE_LIBSVG),y)
+ifeq ($(BR2_PACKAGE_LIBRSVG),y)
 VLC_CONF_OPT += --enable-svg
-VLC_DEPENDENCIES += libsvg
+VLC_DEPENDENCIES += librsvg
 else
 VLC_CONF_OPT += --disable-svg
 endif