Merge lp://qastaging/~fboudra/linaro-image-tools/initial-arndale-bl1-support into lp://qastaging/linaro-image-tools/11.11

The first part of the merge is similar if not identical to the previous one.

A couple of remarks:
- We need some tests for the new board, and the overridden methods (_make_boot_files_v2 and get_boot_env)

One thing I'm not so sure about:

81 class ArndaleConfig(SamsungConfig):
82 def __init__(self):
83 super(ArndaleConfig, self).__init__()
84 + self.bl0_file = 'lib/firmware/arndale/arndale-bl1.bin'
85 self.boot_script = 'boot.scr'
86 self.bootloader_flavor = 'arndale'
87 self.dtb_addr = '0x41f00000'
88 @@ -1572,12 +1584,84 @@
89 self.load_addr = '0x40008000'
90 self.mmc_option = '0:2'
91 self.mmc_part_offset = 1
92 + self.samsung_bl0_start = 1
93 + self.samsung_bl0_len = 16
94 self.samsung_bl1_start = 17
95 + self.samsung_bl1_len = 32
96 self.samsung_bl2_start = 49
97 + self.samsung_bl2_len = 1024
98 self.samsung_env_start = 1073
99 + self.samsung_env_len = 32
100 self.serial_tty = 'ttySAC2'
101 self._extra_serial_options = 'console=%s,115200n8'

I guess there will be a hwpack config file, used to generate the hwpack and the corresponding metadata.
All the serial_tty and _extra_serial_options where done for hwpack format 1.0 compatibility and backward-compatibility. I think we should avoid them with newly defined config and with hwpack 3.0 format. What I would do, is define only the necessary fields that are not present in the hwpack v3.0 definition (even if it wouldn't be that hard to introduce them). So, all the samsung_* defined fields, load_addr, dtb_addr, ..., move them in the hwpack config file, keep only the bare minimum in the class and define only the overridden methods.

Concerns have been fixed (despite I'm clueless with mock).
Moving the fields in the hwpack config had some side effects like None values (tests doesn't mock a hwpack config).

Hi Fathi,

thanks for the effort on addressing all the issues!
To me it looks OK to go, there is only one small glitch:

./linaro_image_tools/media_create/tests/test_media_create.py:823:48: E231 missing whitespace after ','

PEP8 complaining. You can fix that while merging.
Thanks!