Bsongis/power control chip (#6445)

FRSK files support added

radio/src/targets/horus/telemetry_driver.cpp

@@ -138,6 +138,12 @@ void telemetryPortSetDirectionInput()
   TELEMETRY_USART->CR1 |= USART_CR1_RE;                   // turn on receiver
 }
 
+void sportSendByte(uint8_t byte)
+{
+  while (!(TELEMETRY_USART->SR & USART_SR_TXE));
+  USART_SendData(TELEMETRY_USART, byte);
+}
+
 void sportSendBuffer(const uint8_t * buffer, uint32_t count)
 {
   telemetryPortSetDirectionOutput();