hidraw(4): Force switch to hidraw mode on HIDIOCGRDESC ioctl

To match documentation.

Reported by:	Ihor Dutchak <[email protected]>
PR:		286155
MFC after:	3 days

Author: wulf7

sys/dev/hid/hidraw.c

@@ -829,6 +829,9 @@ hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
 		 */
 		if (size >= HID_MAX_DESCRIPTOR_SIZE)
 			return (EINVAL);
+		mtx_lock(&sc->sc_mtx);
+		sc->sc_state.uhid = false;
+		mtx_unlock(&sc->sc_mtx);
 		buf = HIDRAW_LOCAL_ALLOC(local_buf, size);
 		error = hid_get_rdesc(sc->sc_dev, buf, size);
 		if (error == 0) {