gcr: build with gtk+3 for wayland

Also build with gtk+3 dependency if building for wayland without DISTRO_FEATURE "x11".
This fixes an error of missing gcr dependency for gnome-keyring

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>