buildgcc: Fix documentation

Change-Id: I3983d7a393260238b75e9f52e9451b454c551c30
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/7550
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
macbook21: Remove PIRQ table.

This was copied from T60 which in turn copied from P2B-F without doing
any modification. It never worked.

Change-Id: I23fc8a7775df410d0f9735d1461dd9b80e54d076
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7554
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
lenovo/x201: Remove $PIR and MP tables.

Not sure if they ever worked.

Change-Id: I77cf090763aa7ac46480a5a9583985b10b02a267
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7551
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>