previous commit added the ability to pass a list of location+binary
combinations to create UF2s, meaning we no longer need to pad the
concatenated UF2 the same way we pad the raw binary output. this makes
for a more sanely-sized UF2 and faster write
Signed-off-by: Brian S. Stephan <bss@incorporeal.org>
Brian S. Stephan
e133abc922
