tty: vt: use ASCII enum constants in vt_console_print()

There are still numbers used for ASCII characters in vt_console_print().
As we have an ASCII enum now, use the constant names from the enum
instead.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20240202065608.14019-22-jirislaby@kernel.org


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