[coreboot] Patch merged into coreboot/master: 9a0e3e2 M4A785T-M: Add support for external GFX.

the following patch was just integrated into master:
commit 9a0e3e2fc205381746875bee5296777b608bea54
Author: Denis 'GNUtoo' Carikli 
Date:   Thu Dec 20 18:45:53 2012 +0100

M4A785T-M: Add support for external GFX.

This commit enables the external graphics card.
    In order to work, the internal graphic card has to be
      disabled, that is done in src/device/device.c through:
      vga_onboard->ops->disable(vga_onboard);
      which calls the RS780 disable operation introduced in the following
      commit: "rs780: add .disable pcie_ops"

This commit was tested with and without the following card:
      02:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce 210] (rev a2)

Thanks Aladyshev for the pointer(in the #coreboot IRC channel on Freenode servers):
      Dec 20 19:43:32 <Aladyshev>	If you list your internal card in devicetree.cb,
      coreboot will distinguish external and internal VGA and choose external one

Change-Id: I92e59dffd158db096a6e99d1ef6e2e248fef933c
    Signed-off-by: Denis 'GNUtoo' Carikli 
    Reviewed-on: http://review.coreboot.org/2067
    Tested-by: build bot (Jenkins)
    Reviewed-by: Dave Frodin 
    Reviewed-by: Ronald G. Minnich

Build-Tested: build bot (Jenkins) at Sat Dec 29 20:46:34 2012, giving +1
Reviewed-By: Ronald G. Minnich  at Sun Dec 30 03:25:33 2012, giving +2
See http://review.coreboot.org/2067 for details.

-gerrit