bugfix: disable usb for all usb funcs
USB should be disabled if any usb func is enabled.
fix
@@ -75,7 +75,7 @@ static void do_boot(struct boot_rsp *rsp)
rsp->br_hdr->ih_hdr_size);
irq_lock();
sys_clock_disable();
-#ifdef CONFIG_BOOT_SERIAL_CDC_ACM
+#ifdef CONFIG_USB
/* Disable the USB to prevent it from firing interrupts */
usb_disable();
#endif
