memory/spi-mem: add spi memory api calls to protect the memory

This adds api calls to lock/unlock and write a protected area of the
memory.

Author: Beerosagos

src/bootloader/startup.c

@@ -55,7 +55,7 @@ int main(void)
 #ifdef BOOTLOADER_DEVDEVICE
     qtouch_init();
 #endif
-    spi_mem_test();
+    spi_mem_protected_area_lock();
     bootloader_jump();
 
     // If did not jump to firmware code, begin USB processing

src/firmware.c

@@ -38,6 +38,7 @@ int main(void)
     common_main();
     bitbox02_smarteeprom_init();
     spi_mem_test();
+    spi_mem_protected_area_lock();
     firmware_main_loop();
     return 0;
 }