clutter-input-device-wayland: Update indentifier name
clutter-input-device-wayland: Update indentifier name

Fixes a discrepancy between the function name and the gtk-doc identifier
introduced in 8f4e39b6 when the Wayland input protocol changed.

djdeath/clutter,Distrotech/clutter,jigpu/clutter,GNOME/clutter,jigpu/clutter,GNOME/clutter,Distrotech/clutter,GNOME/clutter,djdeath/clutter,Distrotech/clutter,jigpu/clutter,djdeath/clutter,ebassi/clutter,ebassi/clutter,djdeath/clutter,GNOME/clutter,ebassi/clutter,Distrotech/clutter,djdeath/clutter,Distrotech/clutter,djdeath/clutter,ebassi/clutter,jigpu/clutter,ebassi/clutter,jigpu/clutter,GNOME/clutter,jigpu/clutter,Distrotech/clutter