staging: comedi: addi-data: use auto_attach instead of attach_pci

Change the addi-data drivers that use the "common" code so they
attach using the generic 'auto_attach' method instead the pci
specific 'attach_pci' method. The 'attach_pci' is deprecated and
is going to be removed.

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>