Update ath10k-fwencoder to run properly with Python 3
Update ath10k-fwencoder to run properly with Python 3

Explicit string encoding and decoding of UTF-8 strings was added
in order to make the script work with python 3.

Signed-off-by: Erik Stromdahl <bceaca8caa2900989bb30a1257212196c3d2e7c8@gmail.com>

qca/qca-swiss-army-knife,qca/qca-swiss-army-knife,qca/qca-swiss-army-knife,qca/qca-swiss-army-knife