ALSA: asihpi: clean up indentation, replace spaces with tab

The struct declaration is not indented correctly. Fix this by replacing
spaces with a tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/asihpi/asihpi.c

@@ -1183,7 +1183,7 @@ static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
 static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi,
 					u32 h_stream)
 {
-  struct hpi_format hpi_format;
+	struct hpi_format hpi_format;
 	u16 format;
 	u16 err;
 	u32 h_control;