Patch merged into coreboot/master: mainboard/google/reef: drop proto gpio support

the following patch was just integrated into master:
commit e603a90045c2278adef308c85c2807dde38fa1b2
Author: Aaron Durbin 
Date:   Tue Aug 30 17:31:43 2016 -0500

mainboard/google/reef: drop proto gpio support

Many changes make proto boards very hard to work with since
    proto boards were using A stepping processors. Everyone has
    moved on. Therefore, drop non-proto support.

BUG=chrome-os-partner:56791

Change-Id: I2985e3965b1b69445e22506bd664b4cbca13c8ab
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/16377
    Reviewed-by: Duncan Laurie 
    Tested-by: build bot (Jenkins)

See https://review.coreboot.org/16377 for details.

-gerrit