gnome-extra/gnome-calendar: add dependency on gdbus-codegen

See bug #567038, this is not listed in configure.ac but used directly in Makefile.am.
Thanks to Marcin Szamotulski for noticing.

https://bugs.gentoo.org/show_bug.cgi?id=567038

Package-Manager: portage-2.2.26

gnome-extra/gnome-calendar/gnome-calendar-3.16.2.ebuild

@@ -24,6 +24,7 @@ RDEPEND="
 "
 DEPEND="${RDEPEND}
 	dev-libs/appstream-glib
+	dev-util/gdbus-codegen
 	>=dev-util/intltool-0.40.6
 	sys-devel/gettext
 	virtual/pkgconfig

gnome-extra/gnome-calendar/gnome-calendar-3.18.1.ebuild

@@ -25,6 +25,7 @@ RDEPEND="
 "
 DEPEND="${RDEPEND}
 	dev-libs/appstream-glib
+	dev-util/gdbus-codegen
 	>=dev-util/intltool-0.40.6
 	sys-devel/gettext
 	virtual/pkgconfig