staging: comedi: addi_common.h: remove boardinfo member 'i_PCIEeprom'

This member of the boardinfo is not used by any of the drivers. Remove it.

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>