superio/smsc/sio1036: Fix hardcoded TTY0 base addr and .c include

Compile romstage component as link-time symbols. Pass CONFIG_TTY0_BASE
as argument instead of hard coding and playing funny business with the
pre-processor. Fix board to match.

Change-Id: If6d0d5389bd4e7765bb6056cf488c94fd45915c2
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6463
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
superio/smsc/sch4037: Cleanup and fix .c inclusion

Clean up both ram and rom stage support and fix board to match.

Change-Id: I55e3e7338c0551f0fb663eb9707f16ecdc1aca35
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6509
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
lenovo/t520: Fix ExpressCard hotplug

Thinkpad T520 ExpressCard Slot PCIe lanes are connected to port 4.
Tested with Serial Port Card. Information read from schematic / lspci

Change-Id: I459943d427578d135f9aed1aa66da269ddfeee87
Signed-off-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-on: http://review.coreboot.org/6735
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
lenovo/t520: Remove empty smi.h

Change-Id: I60fa19b72f91f16db5f354aeec631f661e3494d3
Signed-off-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-on: http://review.coreboot.org/6736
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>