tty: Put console in K_OFF mode
tty: Put console in K_OFF mode

This disables all kernel key bindings (VT switch keybindings, caps lock
etc) and disables delivery of console input.

udoprog/weston,eyolfson/weston,Fantu/compositor-spice,Fantu/compositor-spice,sir-murray/weston,kwm81/weston,Tarnyko/weston-xdg_surface_present,jonnylamb/weston,kwm81/weston,udoprog/weston,Gnurou/weston,krezovic/weston,jonnylamb/weston,mchalupa/weston,xorgy/weston,xorgy/weston,mchalupa/weston,krezovic/weston,eyolfson/weston,sir-murray/weston,Gnurou/weston,Tarnyko/weston-xdg_surface_present,giucam/weston,Fantu/compositor-spice,giucam/weston