mainboard/compulab: add support for CompuLab Intense-PC

mainboard/compulab: add support for CompuLab Intense-PC

Add coreboot support for CompuLab Intense-PC (Ivy Bridge)

Modifications:
- Memory SPDs have been fixed to detect both installed SODIMM modules
- Full-height Mini-PCIe slot defaults to PCIe mode
  - mSATA can be chosen instead of mPCIe via Kconfig option ENABLE_MSATA

Tested (Xubuntu 17.10/Linux 4.13 where applicable):
- 2+2GB DDR3-1600 SODIMMs pass memtest
- 4+4GB DDR3-1600 SODIMMs pass memtest
- 4+8GB DDR3-1333 SODIMMs pass memtest
- 8+8GB DDR3-1333 SODIMMs pass memtest
- Booting via USB working (with no SATA HDD present)
- Booting to main SATA HDD working
- DisplayPort and HDMI output working for coreboot init (*requires* VGA BIOS)
- DisplayPort and HDMI dual-head working in Linux
- Mini-PCIe devices (half/full-height) detected in Linux
- mSATA working (when chosen using ENABLE_MSATA)
- Onboard Intel 82579 GbE working
- Secondary Realtek 8111 GbE working
- Rear eSATA ports working
- Onboard analog audio output working
- HDMI audio output working
- USB 3.0 working
- Suspend to RAM (S3) working, but not tested extensively
- Mini PCIe WiFi
- FACE module FM-4USB (4 USB 2.0 ports)

Disabled/unsupported:
- TPM (BTO option, not included in base config)
- FACE modules:
  - FM-USB3 (USB 3.0/mSATA) NOT SUPPORTED/TESTED
  - FM-SER (serial) NOT SUPPORTED/TESTED
  - FM-XTDEU2/4 (LAN) NOT SUPPORTED/TESTED
  - FM-XTDE4U2/4 (Quad LAN) NOT SUPPORTED/TESTED
  - FM-XTDM2 (dual mPCIe) NOT SUPPORTED/TESTED
  - FM-VC (video capture) NOT SUPPORTED/TESTED
  - FM-POE (Quad LAN w/PoE) NOT SUPPORTED/TESTED

Not tested:
- RS-232

Product information:
http://www.fit-pc.com/web/products/intense-pc/

Change-Id: I741b0b2f87eb9147c375b405a5b6989a10c7ad0a
Signed-off-by: Hal Martin <hal.martin@gmail.com>
Reviewed-on: https://review.coreboot.org/22210
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>