Merge pull request #10706 from keestux/eliminate-cast-at86rf2xx

tests/driver_at86rf2xx: eliminate cast

tests/driver_at86rf2xx/main.c

@@ -95,7 +95,7 @@ int main(void)
         netdev_t *dev = (netdev_t *)(&devs[i]);
 
         printf("Initializing AT86RF2xx radio at SPI_%d\n", p->spi);
-        at86rf2xx_setup(&devs[i], (at86rf2xx_params_t*) p);
+        at86rf2xx_setup(&devs[i], p);
         dev->event_callback = _event_cb;
         dev->driver->init(dev);
     }