staging: comedi: ni_mio_common drivers: remove NI_E_IRQ_FLAGS defines

These defines are only used in the request_irq() calls. Remove them
and just open code the values.

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>