Jonathan Woithe posted an out of tree enabler/control module for these
cards.  Lift the relevant identifiers and put them in the 8250_pci driver
along with code used to control custom registers on these cards.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJonathan Woithe <jwoithe@just42.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>