Co-own vala and gir directories

Instead of hard-requiring vala and gobject-introspection-devel, co-own
these directories following a common pattern in other packages.

ibus.spec

@@ -218,10 +218,6 @@ Summary:        Development tools for ibus
 Requires:       %{name}-libs%{?_isa}   = %{version}-%{release}
 Requires:       dbus-devel
 Requires:       glib2-devel
-# Owner of %%{_datadir}/gir-1.0
-Requires:       gobject-introspection-devel
-# Owner of %%{_datadir}/vala/vapi
-Requires:       vala
 
 %description devel
 The ibus-devel package contains the header files and developer
@@ -379,6 +375,7 @@ dconf update || :
 
 %files libs
 %{_libdir}/libibus-*%{ibus_api_version}.so.*
+%dir %{_libdir}/girepository-1.0
 %{_libdir}/girepository-1.0/IBus*-1.0.typelib
 
 %files gtk2
@@ -413,7 +410,10 @@ dconf update || :
 %{_libdir}/lib*.so
 %{_libdir}/pkgconfig/*
 %{_includedir}/*
+%dir %{_datadir}/gir-1.0
 %{_datadir}/gir-1.0/IBus*-1.0.gir
+%dir %{_datadir}/vala
+%dir %{_datadir}/vala/vapi
 %{_datadir}/vala/vapi/ibus-*1.0.vapi
 %{_datadir}/vala/vapi/ibus-*1.0.deps
 
@@ -426,6 +426,7 @@ dconf update || :
 %changelog
 * Mon Feb 04 2019 Kalev Lember <klember@redhat.com> - 1.5.19-15
 - Update BRs for vala packaging changes
+- Co-own vala and gir directories
 
 * Fri Feb 01 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.5.19-14
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild