staging: comedi: s626: use dev->board_name for resource name

Instead of the literal string "s626", use the dev->board_name for
the resource name when enabling the PCI device and requesting the
irq.

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