staging: vt6656: vnt_set_keymode simplify key modes.

Unused macros and onfly_latch are removed and others contain
to actual key_type value is or-ed with key_mode.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/0eb6f5bb-f756-ab1d-5b63-db9b0dc422da@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>