wayland: Add wayland-client to pkg-config flags
wayland: Add wayland-client to pkg-config flags

GNOME/clutter,djdeath/clutter,collects/clutter,djdeath/clutter,heysion/clutter-clone,heysion/clutter-clone,djdeath/clutter-android,djdeath/clutter,ebassi/clutter,jigpu/clutter,ebassi/clutter,jigpu/clutter,jigpu/clutter,jigpu/clutter,collects/clutter,djdeath/clutter,collects/clutter,heysion/clutter-clone,GNOME/clutter,ebassi/clutter,djdeath/clutter,GNOME/clutter,Distrotech/clutter,Distrotech/clutter,GNOME/clutter,Distrotech/clutter,Distrotech/clutter,jigpu/clutter,GNOME/clutter,djdeath/clutter-android,collects/clutter,djdeath/clutter-android,djdeath/clutter,ebassi/clutter,heysion/clutter-clone,heysion/clutter-clone,ebassi/clutter,djdeath/clutter-android,Distrotech/clutter,djdeath/clutter-android,jigpu/clutter,collects/clutter,Distrotech/clutter