libgnomeui: Depend on libgnome-keyring not gnome-keyring

libgnomeui needs gnome-keyring-1 which comes from libgnome-keyring

Fixes errors like below

| configure: error: Package requirements (  libxml-2.0 >= 2.4.20
libgnome-2.0 >= 2.13.7   libgnomecanvas-2.0 >= 2.0.0   libbonoboui-2.0
>= 2.13.1   gconf-2.0 >= 1.1.11   pango >= 1.1.2   glib-2.0 >= 2.16.0
|   gio-2.0 >= 2.16.0
|   gnome-vfs-2.0 >= 2.7.3   gnome-keyring-1 >= 0.4) were not met:
|
| No package 'gnome-keyring-1' found

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>