change all print* calls to use the new print with a log_level

fusee/fusee-secondary/src/utils.h

@@ -124,6 +124,7 @@ __attribute__((noreturn)) void watchdog_reboot(void);
 __attribute__((noreturn)) void pmc_reboot(uint32_t scratch0);
 __attribute__((noreturn)) void car_reboot(void);
 __attribute__((noreturn)) void wait_for_button_and_reboot(void);
+void wait_for_button(void);
 
 __attribute__((noreturn)) void generic_panic(void);