feat: Flysky PL18 Support (#4105)

Co-authored-by: raphaelcoeffic <raphael.coeffic@frafos.com>
Co-authored-by: rotorman <risto.koiva@web.de>
Co-authored-by: Xy201207 <yaoxu@flysky.com>
Co-authored-by: Peter Feerick <peter.feerick@gmail.com>

radio/src/hal/key_driver.cpp

@@ -22,6 +22,8 @@
 #include "key_driver.h"
 
 #include "definitions.h"
+#include "dataconstants.h"
+
 #include "hal_keys.inc"
 
 uint32_t keysGetSupported()

radio/src/hal/key_driver.h

@@ -50,11 +50,7 @@ enum EnumKeys {
 
   MAX_KEYS
 };
-#if defined(RADIO_T20)
-#define MAX_TRIMS 8
-#else
-#define MAX_TRIMS 6
-#endif
+
 // returns a bit field with each key set as (1 << KEY_xxx)
 uint32_t readKeys();