auxdisplay: remove PARPORT dependency

Remove PARPORT dependency for Auxiliary Display support.

This is not needed since the dependency for the KS0108 driver is
PARPORT_PC.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>