Patch merged into coreboot/master: soc/intel/apollolake: Include gpio_defs header

the following patch was just integrated into master:
commit d9fc5fb31b5496d4257f1ac1ab5afec8a559c19c
Author: Harsha Priya 
Date:   Wed Jul 6 12:00:49 2016 -0700

soc/intel/apollolake: Include gpio_defs header

Add the gpio_defs.h reference in chip.h to enable
    reef and amenia devicetree.cb to use the definitions from gpio_defs.h.

Change-Id: I333d4e810e42309ac76dd90c19f05cf3e3a517b1
    Signed-off-by: Sathyanarayana Nujella 
    Reviewed-on: https://review.coreboot.org/15550
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin 
    Reviewed-by: Paul Menzel

See https://review.coreboot.org/15550 for details.

-gerrit