Update the LoRaMac-node library to the last stable release and fix
the Zephyr glue code to match it. Move CMakeLists.txt to the main
Zephyr repository to simplify loramac-node module maintenance.
Signed-off-by: Ilya Tagunov <tagunil@gmail.com>
SX1272 chip is very similar to the already supported SX1276;
unfortunately, Semtech provides a completely separate driver
for this one. This commit marks an attempt to avoid code
duplication by means of some not-very-pretty ifdefery.
Signed-off-by: Ilya Tagunov <tagunil@gmail.com>