mcu: Delay reset signaling for usb to canbus bridge nodes

An mcu device acting as an "mcu bridge" should only be reset after
other normal devices are reset - otherwise the bridge wont be able to
pass along the reset message to the downstream mcus.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

src/generic/usb_canbus.c

@@ -13,6 +13,7 @@
 #include "board/pgm.h" // PROGMEM
 #include "board/usb_cdc_ep.h" // USB_CDC_EP_BULK_IN
 #include "byteorder.h" // cpu_to_le16
+#include "command.h" // DECL_CONSTANT
 #include "generic/usbstd.h" // struct usb_device_descriptor
 #include "sched.h" // sched_wake_task
 #include "usb_cdc.h" // usb_notify_ep0
@@ -125,6 +126,8 @@ enum {
     HS_TX_LOCAL = 4,
 };
 
+DECL_CONSTANT("CANBUS_BRIDGE", 1);
+
 void
 canbus_notify_tx(void)
 {