Applied ghost-signal c/m to all remaining TX Apps

firmware/application/apps/soundboard_app.cpp

@@ -25,6 +25,7 @@
 #include "soundboard_app.hpp"
 #include "string_format.hpp"
 #include "tonesets.hpp"
+#include "cpld_update.hpp"
 
 using namespace tonekey;
 using namespace portapack;
@@ -295,7 +296,8 @@ SoundBoardView::~SoundBoardView() {
 
 	stop();
 	transmitter_model.disable();
-	baseband::shutdown();
+	hackrf::cpld::load_sram_no_verify();  // to leave all RX ok, without ghost signal problem at the exit.
+	baseband::shutdown(); // better this function at the end, not load_sram() that sometimes produces hang up.
 }
 
 }