add class driver deinit

src/class/video/video_device.c

@@ -1229,6 +1229,10 @@ void videod_init(void) {
   }
 }
 
+bool videod_deinit(void) {
+  return true;
+}
+
 void videod_reset(uint8_t rhport) {
   (void) rhport;
   for (uint_fast8_t i = 0; i < CFG_TUD_VIDEO; ++i) {

src/class/video/video_device.h

@@ -85,6 +85,7 @@ TU_ATTR_WEAK int tud_video_commit_cb(uint_fast8_t ctl_idx, uint_fast8_t stm_idx,
 // INTERNAL USBD-CLASS DRIVER API
 //--------------------------------------------------------------------+
 void     videod_init           (void);
+bool     videod_deinit         (void);
 void     videod_reset          (uint8_t rhport);
 uint16_t videod_open           (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
 bool     videod_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);