[Taranis] Bitmap name moved to the start of the structure

[Taranis] Bitmap displayed in MODELSEL
[Taranis] Empty EEPROM is not calculated on each keypress in MODELSEL screen
[stock/stock128] Huge RAM saving (thanks Mike!)
[sky9x] Good register used for reboot cause

src/eeprom_common.h

@@ -57,16 +57,9 @@ void eeLoadModelName(uint8_t id, char *name);
 void eeLoadModel(uint8_t id);
 
 #if defined(CPUARM)
-
-extern char modelNames[MAX_MODELS][sizeof(g_model.name)];
-void eeLoadModelNames();
-
-#if defined(PXX)
-extern uint8_t modelIds[MAX_MODELS];
-#endif
-
-#else // defined(CPUARM)
-
-#define eeLoadModelNames()
-
+  extern ModelHeader modelHeaders[MAX_MODELS];
+  void eeLoadModelHeader(uint8_t id, ModelHeader *header);
+  void eeLoadModelHeaders();
+#else
+  #define eeLoadModelHeaders()
 #endif