staging: vc04_services: bcm2835-audio: Add blank line after declaration

Add blank line after declaration. Issue found with checkpatch.
Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c

@@ -209,6 +209,7 @@ static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream)
 	 */
 	if (alsa_stream->running) {
 		int err;
+
 		err = bcm2835_audio_stop(alsa_stream);
 		alsa_stream->running = 0;
 		if (err)