Tools: make CPUInfo test fairer, add data for external flash

fix CPUInfo on linux
make cache disabling optional in CPUInfo

Tools/AP_Bootloader/AP_Bootloader.cpp

@@ -32,7 +32,7 @@
 #include "bl_protocol.h"
 #include "can.h"
 #include <stdio.h>
-#if EXTERNAL_PROG_FLASH_MB
+#if EXT_FLASH_SIZE_MB
 #include <AP_FlashIface/AP_FlashIface_JEDEC.h>
 #endif
 
@@ -44,7 +44,7 @@ struct boardinfo board_info = {
     .board_type = APJ_BOARD_ID,
     .board_rev = 0,
     .fw_size = (BOARD_FLASH_SIZE - (FLASH_BOOTLOADER_LOAD_KB + FLASH_RESERVE_END_KB + APP_START_OFFSET_KB))*1024,
-    .extf_size = (EXTERNAL_PROG_FLASH_MB * 1024 * 1024)
+    .extf_size = (EXT_FLASH_SIZE_MB * 1024 * 1024)
 };
 
 #ifndef HAL_BOOTLOADER_TIMEOUT
@@ -55,7 +55,7 @@ struct boardinfo board_info = {
 #define HAL_STAY_IN_BOOTLOADER_VALUE 0
 #endif
 
-#if EXTERNAL_PROG_FLASH_MB
+#if EXT_FLASH_SIZE_MB
 AP_FlashIface_JEDEC ext_flash;
 #endif
 
@@ -151,7 +151,7 @@ int main(void)
     flash_init();
 
 
-#if EXTERNAL_PROG_FLASH_MB
+#if EXT_FLASH_SIZE_MB
     while (!ext_flash.init()) {
         // keep trying until we get it working
         // there's no future without it