Add RF switch settings for STM32WL variants (#7813)

* Add RF switch settings for STM32WL variants

* Shuffle ifdefs in STM32WLE5JCInterface to make it not get built by other targets

src/mesh/STM32WLE5JCInterface.cpp

@@ -1,13 +1,13 @@
-#include "STM32WLE5JCInterface.h"
 #include "configuration.h"
+
+#ifdef ARCH_STM32WL
+#include "STM32WLE5JCInterface.h"
 #include "error.h"
 
 #ifndef STM32WLx_MAX_POWER
 #define STM32WLx_MAX_POWER 22
 #endif
 
-#ifdef ARCH_STM32WL
-
 STM32WLE5JCInterface::STM32WLE5JCInterface(LockingArduinoHal *hal, RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq,
                                            RADIOLIB_PIN_TYPE rst, RADIOLIB_PIN_TYPE busy)
     : SX126xInterface(hal, cs, irq, rst, busy)