package/libnice: add gobject-introspection optional dependency

gobject-introspection is an optional dependency which is enabled by
default since version 0.1.8 and
https://github.com/libnice/libnice/commit/0388646bdba5f91bb6bb509f5a1c6e9e3f068555

Fixes:
 - http://autobuild.buildroot.org/results/1cba7aa233e19472a69ffc2d8f7324d363a22deb

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libnice/libnice.mk

@@ -22,6 +22,13 @@ LIBNICE_CONF_OPTS += \
 LIBNICE_DEPENDENCIES += openssl
 endif
 
+ifeq ($(BR2_PACKAGE_GOBJECT_INTROSPECTION),y)
+LIBNICE_CONF_OPTS += --enable-introspection
+LIBNICE_DEPENDENCIES += gobject-introspection
+else
+LIBNICE_CONF_OPTS += --disable-introspection
+endif
+
 ifeq ($(BR2_PACKAGE_GST1_PLUGINS_BASE),y)
 LIBNICE_CONF_OPTS += --with-gstreamer
 LIBNICE_DEPENDENCIES += gst1-plugins-base