tty: simserial: now phase out the ioctl file pointer for good

Alan missed the ia64 simulator serial driver (because it was hidden
in arch/... rather than located under drivers/... where one might
expect to find a driver).  Drop the "file *" argument from rs_ioctl()
in arch/ia64/hp/sim/simserial.c

Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>