haswell: more ULT/LP support and minor tweaks

- Add ME device ID for Lynxpoint LP
- Add GPU device IDs for ULT
- SATA init tweaks from checking against DXE reference code
- Remove the ICH7 from the SPI driver so it works on all lynxpoint
without having to add more LPC device ID checks
- Add function disable for audio dsp and xhci, remove PCI bridge
- Add interrupt route registers for new devices (needs romstage setup)

Change-Id: Idb48f50d0bacb6bf90531c3834542b9abb54fb8a
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/2680
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/northbridge/intel/haswell/gma.c

@@ -40,14 +40,17 @@ u32 map_oprom_vendev(u32 vendev)
 	case 0x80860402:		/* GT1 Desktop */
 	case 0x80860406:		/* GT1 Mobile */
 	case 0x8086040a:		/* GT1 Server */
+	case 0x80860a06:		/* GT1 ULT */
 
 	case 0x80860412:		/* GT2 Desktop */
 	case 0x80860416:		/* GT2 Mobile */
 	case 0x8086041a:		/* GT2 Server */
+	case 0x80860a16:		/* GT2 ULT */
 
 	case 0x80860422:		/* GT3 Desktop */
 	case 0x80860426:		/* GT3 Mobile */
 	case 0x8086042a:		/* GT3 Server */
+	case 0x80860a26:		/* GT3 ULT */
 
 		new_vendev=0x80860406;	/* GT1 Mobile */
 		break;