staging: comedi: amplc_dio200: fix C99 array initializer warnings

This patch fixes the following sparse warnings about use of
obsolete array initializer:

drivers/staging/comedi/drivers/amplc_dio200_pci.c:256:24: warning:
	obsolete array initializer, use C99 syntax
drivers/staging/comedi/drivers/amplc_dio200_pci.c:269:24: warning:
	obsolete array initializer, use C99 syntax
drivers/staging/comedi/drivers/amplc_dio200_pci.c:281:25: warning:
	obsolete array initializer, use C99 syntax
drivers/staging/comedi/drivers/amplc_dio200_pci.c:298:25: warning:
	obsolete array initializer, use C99 syntax
drivers/staging/comedi/drivers/amplc_dio200_pci.c:315:25: warning:
	obsolete array initializer, use C99 syntax

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>