Add STM32WL-specific sx126x_set_tx_params function based on the
STM32CubeWL modifications to LoRaMac-node.
Add the "power-amplifier-output" DT property to
"st,stm32wl-subghz-radio" for selecting between the RFO_LP and RFO_HP
output configurations provided by the above mentioned function.
Add the "rfo-lp-max-power" and "rfo-hp-max-power" DT properties for
defining the maximum design power of the respective outputs' matching
networks.
closes#48511
Signed-off-by: Kenneth J. Miller <ken@miller.ec>
e78e8d7c3f