[BT] Consistent checking for BLEDecryptor as a Boolean (#2230)

Consistent checking for BLEDecryptor as a Boolean, not just as a Define, so that
…
…

also behaves correctly when set to false.

main/User_config.h

@@ -654,13 +654,13 @@ void storeSignalValue(uint64_t);
 
 #ifdef ZgatewayBT
 #  ifndef BLEDecryptor
-#    define BLEDecryptor true //true if decrypt encrypted PVVX or BTHome v2 service data
-#  endif
-#  ifndef JSON_BLE_AES_CUSTOM_KEYS
-#    define JSON_BLE_AES_CUSTOM_KEYS 256 // 42 byte BLE Custom Key * 6 rounded up to 256.
-#  endif
-#  ifndef BLE_AES
-#    define BLE_AES "00112233445566778899001122334455"
+#    define BLEDecryptor true //true if decrypt encrypted PVVX, BTHome v2 or Victron Energy broadcast data
+#    ifndef JSON_BLE_AES_CUSTOM_KEYS
+#      define JSON_BLE_AES_CUSTOM_KEYS 256 // 42 byte BLE Custom Key * 6 rounded up to 256.
+#    endif
+#    ifndef BLE_AES
+#      define BLE_AES "00112233445566778899001122334455"
+#    endif
 #  endif
 #endif