Added overridden method for Origen Quad bootloader support.
Fixed samsung_env_start value.
Added custom exception.
Fixed tests, added a new test for exception raised.
Fix support for Origen Quad boards (LP: #1155702):
- New binaries are needed to boot an Origen Quad board,
  binaries provided in the boot tarball for Android.
- Fix the tests and adds another one to verify the correct
  exception is thrown in case of a missing file.
Bumped value of samsung_env_start for Origen Quad.
Bump the value for the samsung_env_start variable
Initial Highbank board config
Added Arndale support for Android boards.
Highbank support:
- load kernel/initrd from ext2 boot parttion
- fix boot_cmd to boot from disk
Completed support for Arndale in android boards.
Fixed problem not picking up correct DTB file name.
Added a test for Arndale under Android, fixed other tests.
Refactor Highbank support:
- introduce load_interface (default is mmc)
- introduce bootfs_type (default is vfat)
- get rid of Highbank inherited functions
Added support for Arndale board on android
Merge trunk
partly revert trunk merge to fix a regression
Fixed regression when using actual dtb file name, not the general one.
Fixed regression when using actual dtb file name, not general one.
Merge trunk (regression fixed)