Add a country identifier field to NVS and populate it with the call to wifi_regulatory_domain() which will (by default) do a lookup for the 'region' identifier in VPD on a Chrome OS device. BUG=chrome-os-partner:50516 BRANCH=glados TEST=build and boot on chell Change-Id: Ie7531848e620095732772c22156a85b7f8a6df5c Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Commit-Id: dafdb3760a0302e3effdc0e83977c1bfd5c9d3b2 Original-Change-Id: Ic83ab008045a469d0e0756f7e4d42f1b3894c529 Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/329295 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13839 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>