Changed telemetry configuration and validation for AFHDS2A and HUBSAN
Added default Bayang telemetry from Silverxxx:
- Option=1 to activate telemetry (option=0 -> standard Bayang protocol)
- Value returned to the TX: RX RSSI, TX RSSI, A1=uncompensated battery
voltage, A2=compensated battery voltage
Loads of changes:
STM32 board introduction: NOT TESTED
XMEGA renamed to ORANGE_TX to be more explicit
DSM: added reset if cyrf freezed
Validate: added a validate file to verify the different compilation
options