kunimitsu: Clean up mainboard code to match glados

Clean up the intel/kunimitsu mainboard code to match the code
and cleanups in glados.  Many of these are trivial changes that
do not impact things in a meaningful way but will make it easier
to diff the code and keep the mainboards in sync.

- use relative path for mainboard includes to make porting easier
- fix trivial style issues to match glados so diffs are clean
- pull GPIO configuration into gpio.h and use from there
- remove thermal.h as it is not used on this board
- make info message BIOS_INFO instead of BIOS_ERR
- add support for SPD manufacturer and part number in SMBIOS

BUG=chrome-os-partner:40635
BRANCH=none
TEST=emerge-kunimitsu coreboot

Change-Id: I64a053bcec0e0ff25a57f65659f391ab64d9a11a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e47f0fd3e00a665f07098c7ea0018d51b105d1be
Original-Change-Id: Ib787f3ccc63115de48c4d608ca2bd81b58d24b6c
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/297752
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11576
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/mainboard/intel/kunimitsu/acpi/superio.asl b/src/mainboard/intel/kunimitsu/acpi/superio.asl
index 747991e..822821e 100644
--- a/src/mainboard/intel/kunimitsu/acpi/superio.asl
+++ b/src/mainboard/intel/kunimitsu/acpi/superio.asl
@@ -18,7 +18,7 @@
  */
 
 /* mainboard configuration */
-#include <mainboard/intel/kunimitsu/ec.h>
+#include "../ec.h"
 
 #define SIO_EC_MEMMAP_ENABLE     // EC Memory Map Resources
 #define SIO_EC_HOST_ENABLE       // EC Host Interface Resources