tty: vt: reformat tioclinux()

Reformat tioclinux() to what we are used to. That is:
* format switch-case (one less indent level),
* format comments (the same indent level), and
* add a newline before return.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230420093559.13200-1-jirislaby@kernel.org


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