nb/intel/gm45: Fix native text mode initialization

The LVDS port is configured to accept data from pipe A, but the panel
fitter and VGA were attached to pipe B.

Changes to VGACNTRL:
- select pipe A instead of pipe B.
- disable VGA centering to fix jitter.

TEST=Build and run on Thinkpad X200 in both text and framebuffer modes.

Change-Id: I2356f264580d8b021952c217de3477291d866f98
Signed-off-by: Nick High <nhigh@openmailbox.org>
Reviewed-on: https://review.coreboot.org/14524
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>

0 files changed, 0 insertions, 0 deletions