Patch merged into coreboot/master: soc/intel/apollolake: Implement GPIO ACPI AML generating functions

the following patch was just integrated into master:
commit 00a9e38f748c839c3a8edf7f2e242c64180456d4
Author: Furquan Shaikh 
Date:   Thu Oct 20 22:45:26 2016 -0700

soc/intel/apollolake: Implement GPIO ACPI AML generating functions

Implement GPIO ACPI AML generating functions that can be called by
    coreboot drivers to generate GPIO manipulation code in AML. Following
    functions are implemented:
    1. acpigen_soc_read_rx_gpio
    2. acpigen_soc_get_tx_gpio
    3. acpigen_soc_set_tx_gpio
    4. acpigen_soc_clear_tx_gpio

BUG=chrome-os-partner:55988

Change-Id: I3d8695d73a1c43555032de90f14ee47ccee45559
    Signed-off-by: Furquan Shaikh 
    Reviewed-on: https://review.coreboot.org/17082
    Tested-by: build bot (Jenkins)
    Reviewed-by: Duncan Laurie

See https://review.coreboot.org/17082 for details.

-gerrit