Prevent uneeded unmount!:mount f already mounted of sdcard (#6986)

Prevent double SD mount on Horus

radio/src/main.cpp

@@ -502,11 +502,9 @@ void perMain()
 #endif
 
 #if defined(STM32)
-  bool sdcardPresent = SD_CARD_PRESENT();
-  if (sdcardPresent && !globalData.sdcardPresent) {
+  if (SD_CARD_PRESENT() && !sdMounted()) {
     sdMount();
   }
-  globalData.sdcardPresent = sdcardPresent;
 #endif
 
 #if !defined(EEPROM)

radio/src/opentx.cpp

@@ -1859,8 +1859,6 @@ void opentxInit()
   }
 
 #if defined(SDCARD)
-  globalData.sdcardPresent = SD_CARD_PRESENT();
-
   // SDCARD related stuff, only done if not unexpectedShutdown
   if (!globalData.unexpectedShutdown) {
     sdInit();

radio/src/opentx.h

@@ -569,9 +569,8 @@ void flightReset(uint8_t check=true);
 
 PACK(struct GlobalData {
   uint8_t unexpectedShutdown:1;
-  uint8_t sdcardPresent:1;
   uint8_t externalAntennaEnabled: 1;
-  uint8_t spare:5;
+  uint8_t spare:6;
 });
 
 extern GlobalData globalData;