New Firmware Release 1.20.2.rc10

[peterp]

A new firmware release 1.20.2.rc10 is now available.

Changes:

• Add support for EU433 region
• Pybytes 1.5.1
• Improve support for different firmware "types" (Pybytes, Pymesh, Pygate)

The firmware packages (.tar.gz) can be downloaded from the docs and the .elf files from github as usual.