Combine Baytrail ChromeOS devices using variant scheme

Combine existing boards google/enguarde and google/ninja using
their common reference board google/rambi as a baseboard.

Variants contain board specific data:
 - DPTF ACPI components
 - I2C ACPI devices
 - RAM config / SPD data
 - devicetree config
 - GPIOs
 - board-specific HW components (e.g., LAN)

Additionally, some minor cleanup/changes were made:
 - remove unused ACPI trackpad/touchscreen devices
 - correct I2C addresses in SMBIOS entries
 - clean up comment formatting
 - remove ACPI device for unused light sensor
 - switch I2C ACPI devices from edge to level triggered interrupts,
   for better compatibility/functionality (and to be consistent
   with other recently-upstreamed ChromeOS devices)

The existing enguarde and ninja boards are removed.

Variant setup modeled after google/auron

Change-Id: Iae7855af9a224fd4cb948b854494e39b545ad449
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/18129
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/mainboard/google/rambi/board_info.txt b/src/mainboard/google/rambi/board_info.txt
index 3e630d3974..84638124ef 100644
--- a/src/mainboard/google/rambi/board_info.txt
+++ b/src/mainboard/google/rambi/board_info.txt
@@ -1,3 +1,7 @@
+Vendor name: Google
+Board name: Rambi Baytrail Reference Board
 Category: laptop
+ROM package: SOIC-8
 ROM protocol: SPI
+ROM socketed: n
 Flashrom support: y