Updater: Store update file name in safety memory before executing updater. Currently name is hardcoded.

stm-firmware/updater/updater.c

@@ -59,7 +59,7 @@ void __attribute__((noreturn)) start_updater_ram_code(void)
 	while(1);
 }
 
-void __attribute__((noreturn)) start_updater(void)
+void __attribute__((noreturn)) updater_update_from_file(const char *filename)
 {
 	struct safety_memory_boot_status status;
 
@@ -67,6 +67,8 @@ void __attribute__((noreturn)) start_updater(void)
 	status.reboot_to_bootloader = 0xFFFFFFFFUL;
 	safety_memory_set_boot_status(&status);
 
+	safety_memory_set_update_filename(filename);
+
 	NVIC_SystemReset();
 	while (1);
 }