[PATCH v4 31/83] buildman: Move board-selection code into a function

[Simon Glass]

Create a new determine_boards() function to hold the code which selects
which boards to build.

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

(no changes since v3)

Changes in v3:
- Correct test failure when using incorrect variable

 tools/buildman/control.py | 59 ++++++++++++++++++++++++++++-----------
 1 file changed, 43 insertions(+), 16 deletions(-)

Applied to u-boot-dm, thanks!