Change in coreboot[master]: mainboard/hp: Add HP Elitebook 8460p

[Iru Cai (Code Review)]

Iru Cai has uploaded a new patch set (#5). ( https://review.coreboot.org/20501 )

Change subject: mainboard/hp: Add HP Elitebook 8460p
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mainboard/hp: Add HP Elitebook 8460p

The code is based on autoport. I'm using a machine with discrete GPU,
and gfx.* in devicetree.cb is from 2760p.

It can be debug with serial port on dock.

Tested:
- CPU and memory: i5-2540M, 4G+0
- Arch Linux (Linux 4.11.7, SeaBIOS payload, with ATOM BIOS extracted
  from vendor UEFI firmware)
- USB ports
- SD card reader
- WLAN
- DP display
- S3

Change-Id: I9c42723ba240a2e9b46998c1a8a708aebc66c604
Signed-off-by: Iru Cai 
---
A src/mainboard/hp/8460p/Kconfig
A src/mainboard/hp/8460p/Kconfig.name
A src/mainboard/hp/8460p/Makefile.inc
A src/mainboard/hp/8460p/acpi/ec.asl
A src/mainboard/hp/8460p/acpi/platform.asl
A src/mainboard/hp/8460p/acpi/superio.asl
A src/mainboard/hp/8460p/acpi_tables.c
A src/mainboard/hp/8460p/board_info.txt
A src/mainboard/hp/8460p/devicetree.cb
A src/mainboard/hp/8460p/dsdt.asl
A src/mainboard/hp/8460p/gpio.c
A src/mainboard/hp/8460p/hda_verb.c
A src/mainboard/hp/8460p/mainboard.c
A src/mainboard/hp/8460p/romstage.c
14 files changed, 769 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/20501/5