While at it, also remove unnecessary "#!/usr/bin/env python3" in files
that only get imported, and adjust other empty/comment lines in the
beginnings of the files for consistency.
This makes files easier to read, and makes the pmbootstrap codebase more
consistent with the build.postmarketos.org codebase.
This makes the flasher work when no flash_method attribute exists on
the args variable, which happens when it is invoked through the
pmbootstrap export --odin command. This is a regression introduced
in b29cc877a7
This fixes#1527
* Rename deviceinfo variable flash_methods to flash_method
* Update pmb.config.deviceinfo_attributes / add sanity check
* Add test case that parses all deviceinfo files
Oliver Smith
Caio Fontes
Oliver Smith
Martijn Braam
Daniele Debernardi
Attila Szöllősi