Fully adjustable splash timer on x7, matching x9 implementation (#5008)

* Fully adjustable splash timer on x7, matching x9 implementation

* Make splash adjustable for all ARM, and just check box for AVR

radio/src/datastructs.h

@@ -880,7 +880,7 @@ PACK(struct TrainerData {
   #define SPLASH_MODE uint8_t splashSpares:3
 #elif defined(FSPLASH)
   #define SPLASH_MODE uint8_t splashMode:3
-#elif defined(PCBTARANIS)
+#elif defined(CPUARM)
   #define SPLASH_MODE int8_t splashMode:3
 #else
   #define SPLASH_MODE uint8_t splashMode:1; uint8_t splashSpare:2

radio/src/gui/128x64/radio_setup.cpp

@@ -467,9 +467,22 @@ void menuRadioSetup(event_t event)
 #if defined(SPLASH) && !defined(FSPLASH)
       case ITEM_SETUP_DISABLE_SPLASH:
       {
+#if defined(CPUARM)
+        lcdDrawTextAlignedLeft(y, STR_SPLASHSCREEN);
+        if (SPLASH_NEEDED()) {
+          lcdDrawNumber(RADIO_SETUP_2ND_COLUMN, y, SPLASH_TIMEOUT/100, attr|LEFT);
+          lcdDrawChar(lcdLastRightPos, y, 's');
+        }
+        else {
+          lcdDrawMMM(RADIO_SETUP_2ND_COLUMN, y, attr);
+        }
+        if (attr) g_eeGeneral.splashMode = -checkIncDecGen(event, -g_eeGeneral.splashMode, -3, 4);
+        break;
+#else
         uint8_t b = 1-g_eeGeneral.splashMode;
         g_eeGeneral.splashMode = 1 - editCheckBox(b, RADIO_SETUP_2ND_COLUMN, y, STR_SPLASHSCREEN, attr, event);
         break;
+#endif
       }
 #endif