[U-Boot] [PATCH v2 04/17] buildman: Convert to Python 3

[sjg at google.com]

Convert buildman to Python 3 and make it use that, to meet the 2020
deadline.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Use integer division for multiprocessing.cpu_count()
- Use integer division in SetupBuild() and GetActionSummary()
- Use HTTPMessage.getheader() instead of HTTPMessage.get()
- Use integer division in toolchain.Download()
- Use explicit utf-8 encoding in Boards.ReadBoards()

 tools/buildman/board.py         |  9 +--
 tools/buildman/bsettings.py     | 20 +++----
 tools/buildman/builder.py       | 47 ++++++++--------
 tools/buildman/builderthread.py | 24 ++++----
 tools/buildman/buildman.py      | 10 ++--
 tools/buildman/control.py       | 44 +++++++--------
 tools/buildman/func_test.py     | 16 +++---
 tools/buildman/test.py          | 22 ++++----
 tools/buildman/toolchain.py     | 99 +++++++++++++++++----------------
 9 files changed, 146 insertions(+), 145 deletions(-)

Applied to u-boot-fdt