The USB bootloader can take a while to be ready / Linux takes a while
to set up the interface.
1s is right at the edge, leading to races and often failed flashing.
Bump the delay to 2s for a wider safety margin, with this flashing is
a lot more reliable.
This module implements the 2 functions called when requesting a board 'reset in application' and 'board reset in bootloader' actions.
This module will also configure the behaviour of bossa flasher and has a dependency on USBUS CDC ACM module for providing STDIO over USB