staging: comedi: ni_65xx: tidy ni_65xx_intr_insn_bits() declaration

For aesthetics, tidy up the whitespace of this function declarations to
follow the form in the rest of the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/comedi/drivers/ni_65xx.c
Simple merge