am bc12cd04: merge from open-source master

Merge commit 'bc12cd04b878a9c3520abd21600c2078c930adc3' into kraken

* commit 'bc12cd04b878a9c3520abd21600c2078c930adc3':
  Use a different kernel boot line for the disk installer.
  Use a property to enable the eth0 LAN port on the emulator