- Decluttered Makefile by moving BOARD_INSUFFICIENT_MEMORY lists from Makefile
to Makefile.ci
- Optimized the list for use of tools:
- One entry per line reduces the number of merge conflicts
- One entry per line allows alphabetical sorting e.g. via Vim's sort command
- Sorted all lists alphabetically
The blacklisted boards use NimBLE as default network stack. But
NimBLE and ndn-riot do not build simultaneously, as they use
clashing crpyto libraries (uECC vs tinycrypt).
Added arduino-nano to BOARD_INSUFFICIENT_MEMORY/BOARD_BLACKLIST following suit
of how arduino-uno is marked, as arduino-nano is mostly an Uno in a different
form factor.
