mcb: Add Altera PCI ID to mcb-pci

Some older PCI-attached MEN FPGAs use an Altera PCI Vendor ID instead of
the MEN one. Add it to the PCI ID table so the driver automatically
attaches to it.

Reported-by: Ben Turner <ben.turner@21net.com>
Tested-by: Ben Turner <ben.turner@21net.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Andreas Geißler <andreas.geissler@men.de>