agp/intel: add new host bridge id for Q57 system

Add new Host Bridge ID found on a Q57 based system from Positivo. I
don't know what abbreviation id for this would be best, may be Q_HB
instead of UNKNOWN currently used would be better.

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>

[ rebased for 3.8-rc3 /tmb ]
Signed-off-by: Thomas Backlund <tmb@mageia.org>

Removed the parts of the patch that are already applied in the kernel by
the commit 67384fe3fd450536342330f684ea1f7dcaef8130:
    "char/agp: add another Ironlake host bridge"

Rediffed for kernel 3.10.24.

Signed-off-by: Eugene A. Shatokhin <eugene.shatokhin@rosalab.ru>

 drivers/char/agp/intel-gtt.c |    2 ++
 1 file changed, 2 insertions(+)

diff -Nurp linux-3.8-rc3/drivers/char/agp/intel-gtt.c linux-3.8-rc3.q57/drivers/char/agp/intel-gtt.c
--- linux-3.8-rc3/drivers/char/agp/intel-gtt.c	2013-01-10 08:17:09.690594184 +0200
+++ linux-3.8-rc3.q57/drivers/char/agp/intel-gtt.c	2013-01-10 08:38:56.649888839 +0200
@@ -1303,6 +1303,8 @@ static const struct intel_gtt_driver_des
 		&g4x_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG,
 	    "HD Graphics", &ironlake_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_IRONLAKE_D2_HB,
+	    "HD Graphics", &ironlake_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG,
 	    "HD Graphics", &ironlake_gtt_driver },
 	{ 0, NULL, NULL }