cheza: Patch device tree with MACs from VPD

Read Bluetooth and WiFi MACs from the VPD and patch them into the
device tree.

BUG=b:113114217
TEST=on cheza:
  kernel with support for reading BT MAC from 'local-bd-address' and
    DT alias 'bluetooth0'
  set 'bluetooth_mac0' in the VPD
  reboot DUT
  run 'hciconfig hci0'
    => MAC matches 'bluetooth_mac0'
BRANCH=none

Change-Id: Ib49c5e5577a0ca2a52fbb2dde2a25580397464ff
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1249705
Reviewed-by: Julius Werner <jwerner@chromium.org>
1 file changed